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Jan TA, Chai R, Sayyid ZN, Cheng AG.Jan TA, et al. Among authors: cheng ag.J Vis Exp. 2011 Dec 23;(58):e3432. doi: 10.3791/3432.J Vis Exp. 2011.PMID: 22217925Free PMC article.
Jan TA, Chai R, Sayyid ZN, van Amerongen R, Xia A, Wang T, Sinkkonen ST, Zeng YA, Levin JR, Heller S, Nusse R, Cheng AG.Jan TA, et al. Among authors: cheng ag.Development. 2013 Mar;140(6):1196-206. doi: 10.1242/dev.087528.Development. 2013.PMID: 23444352Free PMC article.
Atkinson PJ, Huarcaya Najarro E, Sayyid ZN, Cheng AG.Atkinson PJ, et al. Among authors: cheng ag.Development. 2015 May 1;142(9):1561-71. doi: 10.1242/dev.114926.Development. 2015.PMID: 25922522Free PMC article.Review.