Loading…

Comparison of Physical, Chemical, and Sensorial Characteristics between U.S.-Imported and Northwestern Mexico Retail Beef

:  To compare beef from Northwestern Mexico (NMEX) and that imported from the United States in physical‐chemical (PC) and sensory traits, samples of ribeye (m. Longissimus dorsi thoracis, LDT) and knuckle (m. Vastus lateralis, VL) of Mexican (64 LDT; 51 VL) and U.S. (28 LDT; 25 VL) origin were purch...

Full description

Saved in:
Bibliographic Details
Published in:Journal of food science 2010-11, Vol.75 (9), p.C747-C752
Main Authors: González-Rios, H., Peña-Ramos, A., Valenzuela, M., Zamorano-García, L., Cumplido-Barbeitia, G., González-Méndez, N.F., Huerta-Leidenz, N.
Format: Article
Language:English
Subjects:
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by cdi_FETCH-LOGICAL-c4969-738bb35f9a4975d94dabb258e366414e4a0985301e64c9f61e709bb5f2cd95e93
cites cdi_FETCH-LOGICAL-c4969-738bb35f9a4975d94dabb258e366414e4a0985301e64c9f61e709bb5f2cd95e93
container_end_page C752
container_issue 9
container_start_page C747
container_title Journal of food science
container_volume 75
creator González-Rios, H.
Peña-Ramos, A.
Valenzuela, M.
Zamorano-García, L.
Cumplido-Barbeitia, G.
González-Méndez, N.F.
Huerta-Leidenz, N.
description :  To compare beef from Northwestern Mexico (NMEX) and that imported from the United States in physical‐chemical (PC) and sensory traits, samples of ribeye (m. Longissimus dorsi thoracis, LDT) and knuckle (m. Vastus lateralis, VL) of Mexican (64 LDT; 51 VL) and U.S. (28 LDT; 25 VL) origin were purchased randomly from select retail stores located in 3 cities of NMEX. PC evaluation measured contents of moisture, fat and cholesterol, Warner‐Bratzler shear force (WBSF), pH, CIE L*, a*, and b*, cooking loss, and normalized fatty acid profile (FAP). Trained panelists evaluated raw and cooked samples for 2 and 6 different organoleptic traits, respectively. Mexican and U.S.‐imported LDT steaks did not differ (P > 0.05) in PC traits. VL samples differed in L*, b*, hue*, WBSF, and fat content by country of origin (COO). The WBSF for cooked VL samples from the United States was lower (P < 0.05) and fat content was greater (P < 0.05) than those for NMEX steaks. The FAP varied between muscles; Mexican LDT had a higher content of C18:0, while VL from the United States had a higher proportion of polyunsaturated fatty acids (PUFA) and a higher PUFA/Saturated ratio (P < 0.05). Although sensory traits tended to be rated higher for Mexican LDT and VL steaks, no statistical differences with U.S.‐imported samples were detected (P > 0.05). Results indicated that domestic and U.S. retail steaks sold in the NMEX are similar in eating quality and PC, whereas differences observed in FAP deserve further attention from a nutritional standpoint.
doi_str_mv 10.1111/j.1750-3841.2010.01849.x
format article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_872438559</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>849483609</sourcerecordid><originalsourceid>FETCH-LOGICAL-c4969-738bb35f9a4975d94dabb258e366414e4a0985301e64c9f61e709bb5f2cd95e93</originalsourceid><addsrcrecordid>eNqNkV9v0zAUxS0EYqXwFZCFhHghwY7txH5Bgo6OoTFg3cSj5Tg3qkv-FLtV22-Ps5Qi8TS_-Pr6d47u1UEIU5LSeN6tUloIkjDJaZqR2CVUcpXuH6HJ6eMxmhCSZQmlvDhDz0JYkeHN8qfoLKOCCSHzCTrM-nZtvAt9h_saf18egrOmeYtnS2jHynQVXkAXeu9ME_vGG7uBKNk4G3AJmx1Ah-_SRZpctuveb6C611zHcrmDENkOf4W9sz2-gY1xDf4IUD9HT2rTBHhxvKfobv7pdvY5ufp2cTn7cJVYrnKVFEyWJRO1MlwVolK8MmWZCQkszznlwA1RUjBCIedW1TmFgqiyFHVmKyVAsSl6M_quff97G8fRrQsWmsZ00G-DlkXGmRTiASRXXLKcDOSr_8hVv_VdXENLqgoqIxohOULW9yF4qPXau9b4g6ZEDzHqlR7S0kNaeohR38eo91H68ui_LVuoTsK_uUXg9REwIYZUe9NZF_5xjGdMxL2m6P3I7VwDhwcPoL_Mzxd0XCIZDWLcsD8ZGP9L5wUrhP55faH5Qs7Pf9wQfcv-AHplxpw</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>819718849</pqid></control><display><type>article</type><title>Comparison of Physical, Chemical, and Sensorial Characteristics between U.S.-Imported and Northwestern Mexico Retail Beef</title><source>Wiley</source><creator>González-Rios, H. ; Peña-Ramos, A. ; Valenzuela, M. ; Zamorano-García, L. ; Cumplido-Barbeitia, G. ; González-Méndez, N.F. ; Huerta-Leidenz, N.</creator><creatorcontrib>González-Rios, H. ; Peña-Ramos, A. ; Valenzuela, M. ; Zamorano-García, L. ; Cumplido-Barbeitia, G. ; González-Méndez, N.F. ; Huerta-Leidenz, N.</creatorcontrib><description>:  To compare beef from Northwestern Mexico (NMEX) and that imported from the United States in physical‐chemical (PC) and sensory traits, samples of ribeye (m. Longissimus dorsi thoracis, LDT) and knuckle (m. Vastus lateralis, VL) of Mexican (64 LDT; 51 VL) and U.S. (28 LDT; 25 VL) origin were purchased randomly from select retail stores located in 3 cities of NMEX. PC evaluation measured contents of moisture, fat and cholesterol, Warner‐Bratzler shear force (WBSF), pH, CIE L*, a*, and b*, cooking loss, and normalized fatty acid profile (FAP). Trained panelists evaluated raw and cooked samples for 2 and 6 different organoleptic traits, respectively. Mexican and U.S.‐imported LDT steaks did not differ (P &gt; 0.05) in PC traits. VL samples differed in L*, b*, hue*, WBSF, and fat content by country of origin (COO). The WBSF for cooked VL samples from the United States was lower (P &lt; 0.05) and fat content was greater (P &lt; 0.05) than those for NMEX steaks. The FAP varied between muscles; Mexican LDT had a higher content of C18:0, while VL from the United States had a higher proportion of polyunsaturated fatty acids (PUFA) and a higher PUFA/Saturated ratio (P &lt; 0.05). Although sensory traits tended to be rated higher for Mexican LDT and VL steaks, no statistical differences with U.S.‐imported samples were detected (P &gt; 0.05). Results indicated that domestic and U.S. retail steaks sold in the NMEX are similar in eating quality and PC, whereas differences observed in FAP deserve further attention from a nutritional standpoint.</description><identifier>ISSN: 0022-1147</identifier><identifier>EISSN: 1750-3841</identifier><identifier>DOI: 10.1111/j.1750-3841.2010.01849.x</identifier><identifier>PMID: 21535586</identifier><identifier>CODEN: JFDSAZ</identifier><language>eng</language><publisher>Malden, USA: Blackwell Publishing Inc</publisher><subject>Animals ; Beef ; Biological and medical sciences ; Cattle ; Chemical Phenomena ; Cholesterol - analysis ; Comparative analysis ; Fatty acids ; Fatty Acids - analysis ; Food Handling - methods ; Food industries ; Food science ; Fundamental and applied biological sciences. Psychology ; Heating ; longissimus ; Meat ; Meat and meat product industries ; Meat quality ; Mexican beef ; Mexico ; Muscle, Skeletal - chemistry ; Nutrition ; Odorants - analysis ; Origins ; Pigmentation ; Polycarbonates ; Samples ; Statistical analysis ; Statistical methods ; Taste ; U.S. beef ; United States ; Vastus lateralis</subject><ispartof>Journal of food science, 2010-11, Vol.75 (9), p.C747-C752</ispartof><rights>2010 Institute of Food Technologists</rights><rights>2015 INIST-CNRS</rights><rights>Copyright Institute of Food Technologists Nov/Dec 2010</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4969-738bb35f9a4975d94dabb258e366414e4a0985301e64c9f61e709bb5f2cd95e93</citedby><cites>FETCH-LOGICAL-c4969-738bb35f9a4975d94dabb258e366414e4a0985301e64c9f61e709bb5f2cd95e93</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fj.1750-3841.2010.01849.x$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fj.1750-3841.2010.01849.x$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>315,786,790,27957,27958,50923,51032</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=23423524$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/21535586$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>González-Rios, H.</creatorcontrib><creatorcontrib>Peña-Ramos, A.</creatorcontrib><creatorcontrib>Valenzuela, M.</creatorcontrib><creatorcontrib>Zamorano-García, L.</creatorcontrib><creatorcontrib>Cumplido-Barbeitia, G.</creatorcontrib><creatorcontrib>González-Méndez, N.F.</creatorcontrib><creatorcontrib>Huerta-Leidenz, N.</creatorcontrib><title>Comparison of Physical, Chemical, and Sensorial Characteristics between U.S.-Imported and Northwestern Mexico Retail Beef</title><title>Journal of food science</title><addtitle>J Food Sci</addtitle><description>:  To compare beef from Northwestern Mexico (NMEX) and that imported from the United States in physical‐chemical (PC) and sensory traits, samples of ribeye (m. Longissimus dorsi thoracis, LDT) and knuckle (m. Vastus lateralis, VL) of Mexican (64 LDT; 51 VL) and U.S. (28 LDT; 25 VL) origin were purchased randomly from select retail stores located in 3 cities of NMEX. PC evaluation measured contents of moisture, fat and cholesterol, Warner‐Bratzler shear force (WBSF), pH, CIE L*, a*, and b*, cooking loss, and normalized fatty acid profile (FAP). Trained panelists evaluated raw and cooked samples for 2 and 6 different organoleptic traits, respectively. Mexican and U.S.‐imported LDT steaks did not differ (P &gt; 0.05) in PC traits. VL samples differed in L*, b*, hue*, WBSF, and fat content by country of origin (COO). The WBSF for cooked VL samples from the United States was lower (P &lt; 0.05) and fat content was greater (P &lt; 0.05) than those for NMEX steaks. The FAP varied between muscles; Mexican LDT had a higher content of C18:0, while VL from the United States had a higher proportion of polyunsaturated fatty acids (PUFA) and a higher PUFA/Saturated ratio (P &lt; 0.05). Although sensory traits tended to be rated higher for Mexican LDT and VL steaks, no statistical differences with U.S.‐imported samples were detected (P &gt; 0.05). Results indicated that domestic and U.S. retail steaks sold in the NMEX are similar in eating quality and PC, whereas differences observed in FAP deserve further attention from a nutritional standpoint.</description><subject>Animals</subject><subject>Beef</subject><subject>Biological and medical sciences</subject><subject>Cattle</subject><subject>Chemical Phenomena</subject><subject>Cholesterol - analysis</subject><subject>Comparative analysis</subject><subject>Fatty acids</subject><subject>Fatty Acids - analysis</subject><subject>Food Handling - methods</subject><subject>Food industries</subject><subject>Food science</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Heating</subject><subject>longissimus</subject><subject>Meat</subject><subject>Meat and meat product industries</subject><subject>Meat quality</subject><subject>Mexican beef</subject><subject>Mexico</subject><subject>Muscle, Skeletal - chemistry</subject><subject>Nutrition</subject><subject>Odorants - analysis</subject><subject>Origins</subject><subject>Pigmentation</subject><subject>Polycarbonates</subject><subject>Samples</subject><subject>Statistical analysis</subject><subject>Statistical methods</subject><subject>Taste</subject><subject>U.S. beef</subject><subject>United States</subject><subject>Vastus lateralis</subject><issn>0022-1147</issn><issn>1750-3841</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNqNkV9v0zAUxS0EYqXwFZCFhHghwY7txH5Bgo6OoTFg3cSj5Tg3qkv-FLtV22-Ps5Qi8TS_-Pr6d47u1UEIU5LSeN6tUloIkjDJaZqR2CVUcpXuH6HJ6eMxmhCSZQmlvDhDz0JYkeHN8qfoLKOCCSHzCTrM-nZtvAt9h_saf18egrOmeYtnS2jHynQVXkAXeu9ME_vGG7uBKNk4G3AJmx1Ah-_SRZpctuveb6C611zHcrmDENkOf4W9sz2-gY1xDf4IUD9HT2rTBHhxvKfobv7pdvY5ufp2cTn7cJVYrnKVFEyWJRO1MlwVolK8MmWZCQkszznlwA1RUjBCIedW1TmFgqiyFHVmKyVAsSl6M_quff97G8fRrQsWmsZ00G-DlkXGmRTiASRXXLKcDOSr_8hVv_VdXENLqgoqIxohOULW9yF4qPXau9b4g6ZEDzHqlR7S0kNaeohR38eo91H68ui_LVuoTsK_uUXg9REwIYZUe9NZF_5xjGdMxL2m6P3I7VwDhwcPoL_Mzxd0XCIZDWLcsD8ZGP9L5wUrhP55faH5Qs7Pf9wQfcv-AHplxpw</recordid><startdate>201011</startdate><enddate>201011</enddate><creator>González-Rios, H.</creator><creator>Peña-Ramos, A.</creator><creator>Valenzuela, M.</creator><creator>Zamorano-García, L.</creator><creator>Cumplido-Barbeitia, G.</creator><creator>González-Méndez, N.F.</creator><creator>Huerta-Leidenz, N.</creator><general>Blackwell Publishing Inc</general><general>Wiley</general><general>Wiley Subscription Services, Inc</general><scope>BSCLL</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QO</scope><scope>7QR</scope><scope>7ST</scope><scope>7T7</scope><scope>7U7</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>P64</scope><scope>RC3</scope><scope>SOI</scope><scope>KR7</scope><scope>7X8</scope></search><sort><creationdate>201011</creationdate><title>Comparison of Physical, Chemical, and Sensorial Characteristics between U.S.-Imported and Northwestern Mexico Retail Beef</title><author>González-Rios, H. ; Peña-Ramos, A. ; Valenzuela, M. ; Zamorano-García, L. ; Cumplido-Barbeitia, G. ; González-Méndez, N.F. ; Huerta-Leidenz, N.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4969-738bb35f9a4975d94dabb258e366414e4a0985301e64c9f61e709bb5f2cd95e93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Animals</topic><topic>Beef</topic><topic>Biological and medical sciences</topic><topic>Cattle</topic><topic>Chemical Phenomena</topic><topic>Cholesterol - analysis</topic><topic>Comparative analysis</topic><topic>Fatty acids</topic><topic>Fatty Acids - analysis</topic><topic>Food Handling - methods</topic><topic>Food industries</topic><topic>Food science</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Heating</topic><topic>longissimus</topic><topic>Meat</topic><topic>Meat and meat product industries</topic><topic>Meat quality</topic><topic>Mexican beef</topic><topic>Mexico</topic><topic>Muscle, Skeletal - chemistry</topic><topic>Nutrition</topic><topic>Odorants - analysis</topic><topic>Origins</topic><topic>Pigmentation</topic><topic>Polycarbonates</topic><topic>Samples</topic><topic>Statistical analysis</topic><topic>Statistical methods</topic><topic>Taste</topic><topic>U.S. beef</topic><topic>United States</topic><topic>Vastus lateralis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>González-Rios, H.</creatorcontrib><creatorcontrib>Peña-Ramos, A.</creatorcontrib><creatorcontrib>Valenzuela, M.</creatorcontrib><creatorcontrib>Zamorano-García, L.</creatorcontrib><creatorcontrib>Cumplido-Barbeitia, G.</creatorcontrib><creatorcontrib>González-Méndez, N.F.</creatorcontrib><creatorcontrib>Huerta-Leidenz, N.</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Biotechnology Research Abstracts</collection><collection>Chemoreception Abstracts</collection><collection>Environment Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Toxicology Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ANTE: Abstracts in New Technology &amp; Engineering</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><collection>Environment Abstracts</collection><collection>Civil Engineering Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of food science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>González-Rios, H.</au><au>Peña-Ramos, A.</au><au>Valenzuela, M.</au><au>Zamorano-García, L.</au><au>Cumplido-Barbeitia, G.</au><au>González-Méndez, N.F.</au><au>Huerta-Leidenz, N.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Comparison of Physical, Chemical, and Sensorial Characteristics between U.S.-Imported and Northwestern Mexico Retail Beef</atitle><jtitle>Journal of food science</jtitle><addtitle>J Food Sci</addtitle><date>2010-11</date><risdate>2010</risdate><volume>75</volume><issue>9</issue><spage>C747</spage><epage>C752</epage><pages>C747-C752</pages><issn>0022-1147</issn><eissn>1750-3841</eissn><coden>JFDSAZ</coden><notes>istex:253221BB8E47F6A0B22383A10D2BA0488D0E1A63</notes><notes>ark:/67375/WNG-4S8FDQR0-T</notes><notes>ArticleID:JFDS1849</notes><notes>ObjectType-Article-2</notes><notes>SourceType-Scholarly Journals-1</notes><notes>ObjectType-Feature-1</notes><notes>content type line 23</notes><notes>ObjectType-Article-1</notes><notes>ObjectType-Feature-2</notes><abstract>:  To compare beef from Northwestern Mexico (NMEX) and that imported from the United States in physical‐chemical (PC) and sensory traits, samples of ribeye (m. Longissimus dorsi thoracis, LDT) and knuckle (m. Vastus lateralis, VL) of Mexican (64 LDT; 51 VL) and U.S. (28 LDT; 25 VL) origin were purchased randomly from select retail stores located in 3 cities of NMEX. PC evaluation measured contents of moisture, fat and cholesterol, Warner‐Bratzler shear force (WBSF), pH, CIE L*, a*, and b*, cooking loss, and normalized fatty acid profile (FAP). Trained panelists evaluated raw and cooked samples for 2 and 6 different organoleptic traits, respectively. Mexican and U.S.‐imported LDT steaks did not differ (P &gt; 0.05) in PC traits. VL samples differed in L*, b*, hue*, WBSF, and fat content by country of origin (COO). The WBSF for cooked VL samples from the United States was lower (P &lt; 0.05) and fat content was greater (P &lt; 0.05) than those for NMEX steaks. The FAP varied between muscles; Mexican LDT had a higher content of C18:0, while VL from the United States had a higher proportion of polyunsaturated fatty acids (PUFA) and a higher PUFA/Saturated ratio (P &lt; 0.05). Although sensory traits tended to be rated higher for Mexican LDT and VL steaks, no statistical differences with U.S.‐imported samples were detected (P &gt; 0.05). Results indicated that domestic and U.S. retail steaks sold in the NMEX are similar in eating quality and PC, whereas differences observed in FAP deserve further attention from a nutritional standpoint.</abstract><cop>Malden, USA</cop><pub>Blackwell Publishing Inc</pub><pmid>21535586</pmid><doi>10.1111/j.1750-3841.2010.01849.x</doi><tpages>6</tpages></addata></record>
fulltext fulltext
identifier ISSN: 0022-1147
ispartof Journal of food science, 2010-11, Vol.75 (9), p.C747-C752
issn 0022-1147
1750-3841
language eng
recordid cdi_proquest_miscellaneous_872438559
source Wiley
subjects Animals
Beef
Biological and medical sciences
Cattle
Chemical Phenomena
Cholesterol - analysis
Comparative analysis
Fatty acids
Fatty Acids - analysis
Food Handling - methods
Food industries
Food science
Fundamental and applied biological sciences. Psychology
Heating
longissimus
Meat
Meat and meat product industries
Meat quality
Mexican beef
Mexico
Muscle, Skeletal - chemistry
Nutrition
Odorants - analysis
Origins
Pigmentation
Polycarbonates
Samples
Statistical analysis
Statistical methods
Taste
U.S. beef
United States
Vastus lateralis
title Comparison of Physical, Chemical, and Sensorial Characteristics between U.S.-Imported and Northwestern Mexico Retail Beef
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-09-22T11%3A40%3A16IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Comparison%20of%20Physical,%20Chemical,%20and%20Sensorial%20Characteristics%20between%20U.S.-Imported%20and%20Northwestern%20Mexico%20Retail%20Beef&rft.jtitle=Journal%20of%20food%20science&rft.au=Gonz%C3%A1lez-Rios,%20H.&rft.date=2010-11&rft.volume=75&rft.issue=9&rft.spage=C747&rft.epage=C752&rft.pages=C747-C752&rft.issn=0022-1147&rft.eissn=1750-3841&rft.coden=JFDSAZ&rft_id=info:doi/10.1111/j.1750-3841.2010.01849.x&rft_dat=%3Cproquest_cross%3E849483609%3C/proquest_cross%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c4969-738bb35f9a4975d94dabb258e366414e4a0985301e64c9f61e709bb5f2cd95e93%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=819718849&rft_id=info:pmid/21535586&rfr_iscdi=true