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2by Levin, T R, Farraye, F A, Schoen, R E, Hoff, G, Atkin, W, Bond, J H, Winawer, S, Burt, R W, Johnson, D A, Kirk, L M, Litin, S C, Rex, D KGet full text
Published in Gut
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4by Elkin, P L, Ruggieri, A P, Brown, S H, Buntrock, J, Bauer, B A, Wahner-Roedler, D, Litin, S C, Beinborn, J, Bailey, K R, Bergstrom, LGet full text
Published in Proceedings - AMIA Symposium
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