Group Lunch, Apr. 2011, Left to Right, Beijun Cheng, Song Yi, Hossein Tootoonchi, Angel Kaifer, Yanhua Qiu, Wei Li, Sanem Senler, Beth Batchelor  Group Photo, Dec. 2010, Left to Right, Sonia Bruña Fernández, Sanem Senler, Yanhua Qiu, Angel Kaifer, Hossein Tootoonchi, Wei Li, Song Yi  Group Lunch, Aug. 2010, Left to Right, Brandon Diaz, Sanem Senler, Viktor Kolman, Yanhua Qiu, Angel Kaifer, Hossein Tootoonchi, Wei Li, Song Yi
 Summer of 2009- Lunch at Siam Lotus. From left to right: Vladimir Sindelar, Wei Li, Suresh Gadde, Wesley Clesi, Angel Kaifer, Beth Batchelor, Margaux Guiche, Song Yi and Wendi Oppenheimer  Spring of 2009- Goodbye party for Elisa. L to R: Lu Cui, Suresh Gadde, Song Yi, Wei Li and Elisa Mileo  Dec. 2008- Wei Wang celebrating his Ph.D. graduation
 Summer of 2008- L to R: Angel Kaifer, Mausam Patel, Wei Li, Lu Cui, Suresh Gadde, Beth Batchelor, Song Yi and Wei Wang  March 2005- Bottom l to r:  Wei Wang, Dagmara Podkoscielny, Hao Sun, Vladimir Sindelar, Angel Kaifer, Mabel Cejas and Ivy Phlip. Top: Samantha Parker, Serena Silvi, Yonghua Ling and David Sobransingh  Time evolution of the group- Top left 1997, bottom left 1999, top right 2005, bottom right 2006
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   May 2009- Angel Kaifer during his visit to the group of Prof. Feihe Huang, at Zhejiang University.