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    First Sagittarius A Event Horizon Telescope Results. VI. Testing the Black Hole Metric by Event Horizon Telescope Collaboration, Akiyama, Kazunori, Alef, Walter, Algaba, Juan Carlos, Asada, Keiichi, Barrett, John, Bintley, Dan, Blackburn, Lindy, Bouman, Katherine L., Broderick, Avery E., Broguiere, Dominique, Bronzwaer, Thomas, Byun, Do-Young, Carlstrom, John E., Chael, Andrew, Chatterjee, Koushik, Chatterjee, Shami, Chen, Yongjun, Cho, Ilje, Conroy, Nicholas S., Cordes, James M., Crawford, Thomas M., Cruz-Osorio, Alejandro, Dempsey, Jessica, Dexter, Jason, Ford, H. Alyson, Freeman, William T., Galison, Peter, Gómez-Ruiz, Arturo I., Haworth, Kari, Hecht, Michael H., Ho, Luis C., Ho, Paul, Honma, Mareki, Huang, Chih-Wei L., Hughes, David H., Ikeda, Shiro, Impellizzeri, C. M. Violette, James, David J., Johnson, Michael D., Karami, Mansour, Karuppusamy, Ramesh, Keating, Garrett K., Kim, Dong-Jin, Kino, Motoki, Kocherlakota, Prashant, Koch, Patrick M., Kramer, Carsten, Kramer, Michael, Krichbaum, Thomas P., Kuo, Cheng-Yu, Lee, Sang-Sung, Leung, Po Kin, Levis, Aviad, Liu, Jun, Liu, Kuo, Loinard, Laurent, Lonsdale, Colin J., Lu, Ru-Sen, Marchili, Nicola, Marscher, Alan P., Matthews, Lynn D., Mizuno, Izumi, Moriyama, Kotaro, Mus, Alejandro, Myserlis, Ioannis, Nakamura, Masanori, Narayanan, Gopal, Neilsen, Joey, Nowak, Michael A., Oh, Junghwan, Pen, Ue-Li, Piétu, Vincent, Porth, Oliver, Pötzl, Felix M., Prather, Ben, Psaltis, Dimitrios, Rao, Ramprasad, Raymond, Alexander W., Rezzolla, Luciano, Ricarte, Angelo, Roelofs, Freek, Rogers, Alan, Romero-Cañizales, Cristina, Roshanineshat, Arash, Roy, Alan L., Rygl, Kazi L. J., Sánchez, Salvador, Sánchez-Argüelles, David, Savolainen, Tuomas, Schloerb, F. Peter, Schonfeld, Jonathan, Trent, Tyler, Turk, Matthew, van Bemmel, Ilse, Ward-Thompson, Derek, Wex, Norbert, Wielgus, Maciek, Yamaguchi, Paul, Zhao, Guang-Yao

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    First Sagittarius A Event Horizon Telescope Results. V. Testing Astrophysical Models of the Galactic Center Black Hole by Event Horizon Telescope Collaboration, Alef, Walter, Carlos Algaba, Juan, Barrett, John, Bouman, Katherine L., Broderick, Avery E., Broguiere, Dominique, Bronzwaer, Thomas, Bustamante, Sandra, Carlstrom, John E., Chael, Andrew, Cho, Ilje, Cordes, James M., Cruz-Osorio, Alejandro, Dexter, Jason, Eatough, Ralph P., Emami, Razieh, Freeman, William T., Galison, Peter, Gómez-Ruiz, Arturo I., Gurwell, Mark, Hada, Kazuhiro, Hecht, Michael H., Ho, Luis C., Hughes, David H., Karami, Mansour, Karuppusamy, Ramesh, Keating, Garrett K., Kim, Dong-Jin, Kocherlakota, Prashant, Kofuji, Yutaro, Koch, Patrick M., Koyama, Shoko, Kramer, Carsten, Kramer, Michael, Krichbaum, Thomas P., Kuo, Cheng-Yu, Bella, Noemi La, Lee, Sang-Sung, Levis, Aviad, Li, Zhiyuan, Lindahl, Greg, Liu, Jun, Liu, Kuo, Lo, Wen-Ping, Lonsdale, Colin J., Marchili, Nicola, Marscher, Alan P., Matsushita, Satoki, Matthews, Lynn D., Mizuno, Izumi, Moran, James M., Müller, Cornelia, Musoke, Gibwa, Myserlis, Ioannis, Nakamura, Masanori, Narayan, Ramesh, Natarajan, Iniyan, Navarro Fuentes, Santiago, Neilsen, Joey, Nowak, Michael A., Oh, Junghwan, Okino, Hiroki, Palumbo, Daniel C. M., Park, Jongho, Parsons, Harriet, Pesce, Dominic W., Porth, Oliver, Pötzl, Felix M., Prather, Ben, Psaltis, Dimitrios, Pu, Hung-Yi, Ramakrishnan, Venkatessh, Ripperda, Bart, Roelofs, Freek, Rogers, Alan, Romero-Cañizales, Cristina, Roy, Alan L., Sánchez, Salvador, Sánchez-Argüelles, David, Savolainen, Tuomas, Schloerb, F. Peter, Shao, Lijing, Sohn, Bong Won, Tiede, Paul, Tilanus, Remo P. J., Trent, Tyler, Turk, Matthew, van Rossum, Daniel R., Ward-Thompson, Derek, Weintroub, Jonathan, Wex, Norbert, Wielgus, Maciek, Wondrak, Michael F., Young, Ken, Younsi, Ziri, Yuan, Ye-Fei, Zhao, Guang-Yao, Ressler, Sean, White, Chris

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    First Sagittarius A Event Horizon Telescope Results. III. Imaging of the Galactic Center Supermassive Black Hole by Event Horizon Telescope Collaboration, Akiyama, Kazunori, Alef, Walter, Algaba, Juan Carlos, Anantua, Richard, Asada, Keiichi, Barrett, John, Bintley, Dan, Bouman, Katherine L., Broderick, Avery E., Broguiere, Dominique, Bustamante, Sandra, Byun, Do-Young, Carlstrom, John E., Chael, Andrew, Chatterjee, Shami, Chen, Yongjun, Cho, Ilje, Cordes, James M., Crawford, Thomas M., Davelaar, Jordy, Dempsey, Jessica, Dexter, Jason, Eatough, Ralph P., Ford, H. Alyson, Freeman, William T., Galison, Peter, Gold, Roman, Gurwell, Mark, Haworth, Kari, Hecht, Michael H., Ho, Luis C., Honma, Mareki, Hughes, David H., Ikeda, Shiro, Inoue, Makoto, Issaoun, Sara, Jiménez-Rosales, Alejandra, Karami, Mansour, Karuppusamy, Ramesh, Keating, Garrett K., Kim, Dong-Jin, Kino, Motoki, Koay, Jun Yi, Koch, Patrick M., Kramer, Carsten, Kramer, Michael, Krichbaum, Thomas P., Bella, Noemi La, Lee, Sang-Sung, Leung, Po Kin, Levis, Aviad, Liu, Jun, Liu, Kuo, Lo, Wen-Ping, Lonsdale, Colin J., Lu, Ru-Sen, Marchili, Nicola, Marscher, Alan P., Matsushita, Satoki, Matthews, Lynn D., Mizuno, Izumi, Moscibrodzka, Monika, Mus, Alejandro, Myserlis, Ioannis, Neilsen, Joey, Nowak, Michael A., Oh, Junghwan, Olivares, Héctor, Palumbo, Daniel C. M., Park, Jongho, Pesce, Dominic W., Piétu, Vincent, Pötzl, Felix M., Prather, Ben, Psaltis, Dimitrios, Rawlings, Mark G., Raymond, Alexander W., Rezzolla, Luciano, Ripperda, Bart, Roelofs, Freek, Rogers, Alan, Romero-Cañizales, Cristina, Roshanineshat, Arash, Roy, Alan L., Rygl, Kazi L. J., Sánchez, Salvador, Sánchez-Argüelles, David, Savolainen, Tuomas, Schloerb, F. Peter, Schonfeld, Jonathan, Sohn, Bong Won, Tilanus, Remo P. J., Trent, Tyler, Turk, Matthew, van Bemmel, Ilse, Ward-Thompson, Derek, Wex, Norbert, Wielgus, Maciek, Zhao, Guang-Yao

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    First Sagittarius A Event Horizon Telescope Results. IV. Variability, Morphology, and Black Hole Mass by Event Horizon Telescope Collaboration, Alef, Walter, Algaba, Juan Carlos, Anantua, Richard, Asada, Keiichi, Barrett, John, Bintley, Dan, Bouman, Katherine L., Broderick, Avery E., Broguiere, Dominique, Bustamante, Sandra, Carlstrom, John E., Chael, Andrew, Chen, Yongjun, Cho, Ilje, Cordes, James M., Crawford, Thomas M., Cruz-Osorio, Alejandro, Davelaar, Jordy, Dempsey, Jessica, Dexter, Jason, Ford, H. Alyson, Freeman, William T., Galison, Peter, Gómez-Ruiz, Arturo I., Gurwell, Mark, Haworth, Kari, Hecht, Michael H., Ho, Luis C., Ho, Paul, Honma, Mareki, Hughes, David H., Ikeda, Shiro, Issaoun, Sara, Jiménez-Rosales, Alejandra, Jung, Taehyun, Karami, Mansour, Karuppusamy, Ramesh, Keating, Garrett K., Kim, Dong-Jin, Kim, Jae-Young, Kim, Jongsoo, Kino, Motoki, Koay, Jun Yi, Kocherlakota, Prashant, Koch, Patrick M., Kramer, Carsten, Kramer, Michael, Krichbaum, Thomas P., Bella, Noemi La, Lee, Sang-Sung, Levis, Aviad, Liu, Jun, Liu, Kuo, Loinard, Laurent, Lonsdale, Colin J., Lu, Ru-Sen, Marchili, Nicola, Marscher, Alan P., Matsushita, Satoki, Matthews, Lynn D., Mizuno, Izumi, Moriyama, Kotaro, Moscibrodzka, Monika, Mus, Alejandro, Myserlis, Ioannis, Neilsen, Joey, Nowak, Michael A., Oh, Junghwan, Olivares, Héctor, Paraschos, Georgios Filippos, Park, Jongho, Patel, Nimesh, Pen, Ue-Li, Piétu, Vincent, Plambeck, Richard, Pötzl, Felix M., Prather, Ben, Preciado-López, Jorge A., Rao, Ramprasad, Rottmann, Helge, Roy, Alan L., Ruszczyk, Chet, Rygl, Kazi L. J., Sánchez, Salvador, Sánchez-Argüelles, David, Sánchez-Portal, Miguel, Schonfeld, Jonathan, Small, Des, Sohn, Bong Won, SooHoo, Jason, Sun, He, Torne, Pablo, Trippe, Sascha, van Bemmel, Ilse, van Rossum, Daniel R., Wardle, John, Wex, Norbert, Yamaguchi, Paul, Zhang, Shuo

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    First M87 Event Horizon Telescope Results. VIII. Magnetic Field Structure near The Event Horizon by Azulay, Rebecca, Barrett, John, Benson, Bradford A., Blundell, Raymond, Boland, Wilfred, Bouman, Katherine L., Boyce, Hope, Brissenden, Roger, Chael, Andrew, Chatterjee, Shami, Christian, Pierre, Conway, John E., Cordes, James M., Cruz-Osorio, Alejandro, Cui, Yuzhu, Davelaar, Jordy, Deane, Roger, Dempsey, Jessica, Desvignes, Gregory, Fromm, Christian M., Gammie, Charles F., Gurwell, Mark, Hada, Kazuhiro, Ho 何, Luis C. 子山, Honma, Mareki, Huang, Chih-Wei L., Hughes, David H., Ikeda, Shiro, Issaoun, Sara, Janssen, Michael, Jeter, Britton, Johnson, Michael D., Karami, Mansour, Karuppusamy, Ramesh, Kawashima, Tomohisa, Kettenis, Mark, Kim, Jae-Young, Kim, Junhan, Koay, Jun Yi, Kofuji, Yutaro, Koyama, Shoko, Kramer, Michael, Kramer, Carsten, Krichbaum, Thomas P., Kuo, Cheng-Yu, Lauer, Tod R., Lindahl, Greg, Lo, Wen-Ping, Loinard, Laurent, MacDonald, Nicholas R., Mao 毛, Jirong 基荣, Marscher, Alan P., Matsushita, Satoki, Matthews, Lynn D., Medeiros, Lia, Menten, Karl M., Mizuno, Izumi, Moriyama, Kotaro, Musoke, Gibwa, Mejías, Alejandro Mus, Michalik, Daniel, Nagar, Neil M., Narayan, Ramesh, Nathanail, Antonios, Neilsen, Joey, Neri, Roberto, Ni, Chunchong, Olivares, Héctor, Patel, Nimesh, Pen, Ue-Li, Plambeck, Richard, PopStefanija, Aleksandar, Porth, Oliver, Preciado-López, Jorge A., Psaltis, Dimitrios, Pu, Hung-Yi, Ramakrishnan, Venkatessh, Rawlings, Mark G., Raymond, Alexander W., Rezzolla, Luciano, Rottmann, Helge, Roy, Alan L., Ruszczyk, Chet, Sasada, Mahito, Savolainen, Tuomas, Shao, Lijing, Tazaki, Fumie, Titus, Michael, Torne, Pablo, Bemmel, Ilse van, Wardle, John, Weintroub, Jonathan, Wex, Norbert, Wharton, Robert, Wielgus, Maciek, Wu 吴, Qingwen 庆文, Yoon, Doosoo, Young, Ken, Younsi, Ziri, Yuan 袁, Feng 峰

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    First M87 Event Horizon Telescope Results. VII. Polarization of the Ring by Algaba, Juan Carlos, Azulay, Rebecca, Barrett, John, Benson, Bradford A., Blundell, Raymond, Boland, Wilfred, Bouman, Katherine L., Boyce, Hope, Brinkerink, Christiaan D., Brissenden, Roger, Bronzwaer, Thomas, Carlstrom, John E., Chael, Andrew, Chatterjee, Shami, Christian, Pierre, Conway, John E., Cordes, James M., Cruz-Osorio, Alejandro, Cui, Yuzhu, Davelaar, Jordy, Deane, Roger, Dempsey, Jessica, Desvignes, Gregory, Fomalont, Ed, Friberg, Per, Fromm, Christian M., Fuentes, Antonio, Galison, Peter, Gammie, Charles F., García, Roberto, Gold, Roman, Gurwell, Mark, Hada, Kazuhiro, Huang, Chih-Wei L., Hughes, David H., Inoue, Makoto, Jimenez-Rosales, Alejandra, Jorstad, Svetlana, Jung, Taehyun, Keating, Garrett K., Kim, Dong-Jin, Kino, Motoki, Kuo, Cheng-Yu, Levis, Aviad, Li 李, Zhiyuan 志远, Lindqvist, Michael, Liu 刘, Jun 俊, Lobanov, Andrei P., Loinard, Laurent, Lonsdale, Colin, Lu 路, Ru-Sen 如森, MacDonald, Nicholas R., Marchili, Nicola, Markoff, Sera, Martí-Vidal, Iván, Mizuno, Izumi, Mizuno, Yosuke, Moran, James M., Moriyama, Kotaro, Müller, Cornelia, Nadolski, Andrew, Nagai, Hiroshi, Nakamura, Masanori, Ni, Chunchong, Noutsos, Aristeidis, Nowak, Michael A., Ortiz-León, Gisela N., Palumbo, Daniel C. M., Park, Jongho, Pesce, Dominic W., Piétu, Vincent, Pötzl, Felix M., Preciado-López, Jorge A., Rao, Ramprasad, Ricarte, Angelo, Roelofs, Freek, Rogers, Alan, Ros, Eduardo, Rose, Mel, Roshanineshat, Arash, Rottmann, Helge, Ruszczyk, Chet, Rygl, Kazi L. J., Sánchez-Arguelles, David, Sasada, Mahito, Schloerb, F. Peter, Schuster, Karl-Friedrich, Shen 沈, Zhiqiang 志强, SooHoo, Jason, Sun 孙, He 赫, Tilanus, Remo P. J., Toma, Kenji, Torne, Pablo, Trippe, Sascha, Bemmel, Ilse van, Weintroub, Jonathan, Young, André, Younsi, Ziri, Zensus, J. Anton, Zhao, Guang-Yao

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    Millimeter Light Curves of Sagittarius A Observed during the 2017 Event Horizon Telescope Campaign by Keating, Garrett K., Tiede, Paul, Fomalont, Ed, Nowak, Michael A., Gammie, Charles F., Haggard, Daryl, Chan, Chi-kwan, Chatterjee, Koushik, Doeleman, Sheperd S., Georgiev, Boris, Johnson, Michael D., Mus, Alejandro, Witzel, Gunther, Akiyama, Kazunori, Bach, Uwe, Benson, Bradford A., Boyce, Hope, Brinkerink, Christiaan D., Britzen, Silke, Byun, Do-Young, Carlstrom, John E., Chatterjee, Shami, Chen, Ming-Tang, Cordes, James M., De Laurentis, Mariafelicia, Deane, Roger, Eatough, Ralph P., Falcke, Heino, Farah, Joseph, Fish, Vincent L., Freeman, William T., Fromm, Christian M., García, Roberto, Gentaz, Olivier, Gu, Minfeng, Ho, Luis C., Ho, Paul, Huang, Chih-Wei L., Huang, Lei, Inoue, Makoto, James, David J., Joshi, Abhishek V., Kawashima, Tomohisa, Kim, Dong-Jin, Kim, Jae-Young, Kim, Jongsoo, Kim, Junhan, Kino, Motoki, Yi Koay, Jun, Kocherlakota, Prashant, Kramer, Carsten, Kramer, Michael, Lauer, Tod R., Lico, Rocco, Lisakov, Mikhail, Liu, Kuo, Lobanov, Andrei P., Markoff, Sera, Marscher, Alan P., Michalik, Daniel, Mizuno, Izumi, Moriyama, Kotaro, Nadolski, Andrew, Nagai, Hiroshi, Narayan, Ramesh, Narayanan, Gopal, Navarro Fuentes, Santiago, Olivares, Héctor, Oyama, Tomoaki, Patel, Nimesh, Pesce, Dominic W., Piétu, Vincent, PopStefanija, Aleksandar, Preciado-López, Jorge A., Ricarte, Angelo, Romero-Canizales, Cristina, Roy, Alan L., Sánchez, Salvador, Sánchez-Argüelles, David, Shao, Lijing, Shen, Zhiqiang, Won Sohn, Bong, Sun, He, Titus, Michael, Torne, Pablo, Trent, Tyler, Trippe, Sascha, van Bemmel, Ilse, van Rossum, Daniel R., Wardle, John, Weintroub, Jonathan, Wex, Norbert, Wharton, Robert, Wondrak, Michael F., Wong, George N., Yamaguchi, Paul, Young, Ken, Younsi, Ziri, Yuan, Ye-Fei, Zhao, Guang-Yao

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    Polarimetric Properties of Event Horizon Telescope Targets from ALMA by Goddi, Ciriaco, Martí-Vidal, Iván, Marrone, Daniel P., Moscibrodzka, Monika, Nagai, Hiroshi, Impellizzeri, C. M. Violette, Kadler, Matthias, Lico, Rocco, Ros, Eduardo, Younsi, Ziri, Alberdi, Antxon, Azulay, Rebecca, Ball, David, Baloković, Mislav, Benson, Bradford A., Bintley, Dan, Blackburn, Lindy, Brissenden, Roger, Bronzwaer, Thomas, Chatterjee, Shami, Chatterjee, Koushik, Chen, Ming-Tang, Chen 陈永, Yongjun 军, Chesler, Paul M., Cho, Ilje, Deane, Roger, Desvignes, Gregory, Falcke, Heino, Farah, Joseph, Fraga-Encinas, Raquel, Fuentes, Antonio, Galison, Peter, Gammie, Charles F., Gentaz, Olivier, Gurwell, Mark, Haggard, Daryl, Hecht, Michael H., Hesper, Ronald, Ho 何子, Luis C. 山, Huang 黄, Lei 磊, James, David J., Jeter, Britton, Jorstad, Svetlana, Karami, Mansour, Karuppusamy, Ramesh, Keating, Garrett K., Kim, Dong-Jin, Kino, Motoki, Kofuji, Yutaro, Lauer, Tod R., Lee, Sang-Sung, Li 李志, Zhiyuan 远, Lindqvist, Michael, Liu 刘, Jun 俊, Liuzzo, Elisabetta, Lobanov, Andrei P., Lonsdale, Colin, Lu 路如, Ru-Sen 森, Marchili, Nicola, Medeiros, Lia, Mizuno, Yosuke, Moriyama, Kotaro, Natarajan, Iniyan, Ni, Chunchong, Oyama, Tomoaki, Palumbo, Daniel C. M., Patel, Nimesh, Pen, Ue-Li, Pesce, Dominic W., Pötzl, Felix M., Preciado-López, Jorge A., Psaltis, Dimitrios, Ramakrishnan, Venkatessh, Rao, Ramprasad, Raymond, Alexander W., Rogers, Alan, Rottmann, Helge, Roy, Alan L., Ruszczyk, Chet, Sasada, Mahito, Savolainen, Tuomas, Shao, Lijing, Sohn, Bong Won, Tazaki, Fumie, Titus, Michael, Torne, Pablo, Traianou, Efthalia, Bemmel, Ilse van, Wardle, John, Weintroub, Jonathan, Wex, Norbert, Wharton, Robert, Wielgus, Maciek, Yoon, Doosoo, Young, Ken, Yuan 袁业, Ye-Fei 飞, Zhao, Guang-Yao, Gopakumar, A., Komossa, S., Muders, Dirk

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    The Polarized Image of a Synchrotron-emitting Ring of Gas Orbiting a Black Hole by Johnson, Michael D., Himwich, Elizabeth, Chang, Dominic O., Dexter, Jason, Gammie, Charles F., Chael, Andrew A., Azulay, Rebecca, Baczko, Anne-Kathrin, Ball, David, Blundell, Raymond, Bower, Geoffrey C., Brinkerink, Christiaan D., Brissenden, Roger, Bronzwaer, Thomas, Byun, Do-Young, Chatterjee, Shami, Chen, Yongjun, Chesler, Paul M., Crawford, Thomas M., Dempsey, Jessica, Desvignes, Gregory, Eatough, Ralph P., Farah, Joseph, Fish, Vincent L., Friberg, Per, Fuentes, Antonio, Galison, Peter, Gentaz, Olivier, Georgiev, Boris, Gold, Roman, Gurwell, Mark, Honma, Mareki, Huang, Lei, Hughes, David H., Jannuzi, Buell T., Janssen, Michael, Kawashima, Tomohisa, Kino, Motoki, Kofuji, Yutaro, Kramer, Carsten, Krichbaum, Thomas P., Lee, Sang-Sung, Levis, Aviad, Li, Yan-Rong, Li, Zhiyuan, Lico, Rocco, Lindahl, Greg, Mao, Jirong, Markoff, Sera, Marrone, Daniel P., Marscher, Alan P., Martí-Vidal, Iván, Menten, Karl M., Mizuno, Izumi, Moriyama, Kotaro, Müller, Cornelia, Mejías, Alejandro Mus, Nagai, Hiroshi, Nagar, Neil M., Nakamura, Masanori, Narayanan, Gopal, Natarajan, Iniyan, Neilsen, Joey, Okino, Hiroki, Ortiz-León, Gisela N., Oyama, Tomoaki, Patel, Nimesh, Pen, Ue-Li, Plambeck, Richard, Porth, Oliver, Preciado-López, Jorge A., Psaltis, Dimitrios, Ramakrishnan, Venkatessh, Rao, Ramprasad, Rezzolla, Luciano, Rogers, Alan, Rose, Mel, Roshanineshat, Arash, Roy, Alan L., Ruszczyk, Chet, Rygl, Kazi L. J., Shen, Zhiqiang, SooHoo, Jason, Sun, He, Tilanus, Remo P. J., Titus, Michael, Toma, Kenji, Trippe, Sascha, van Bemmel, Ilse, van Rossum, Daniel R., Ward-Thompson, Derek, Weintroub, Jonathan, Wex, Norbert, Wharton, Robert, Wielgus, Maciek, Wu, Qingwen, Young, Ken, Yuan, Ye-Fei, Zensus, J. Anton, Zhao, Guang-Yao

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