Cheng, C.W., Yan, C.H., Choy, S.W., Hui, M.N., Hui, C.C., and Cheng, S.H. (2007) Zebrafish homologue irx1a is required for the differentiation of serotonergic neurons. Developmental Dynamics : an official publication of the American Association of Anatomists. 236(9):2661-2667

Choy, S.W., Cheng, C.W., Lee, S.T., Li, V.W., Hui, M.N., Hui, C.C., Liu, D., and Cheng, S.H. (2010) A cascade of irx1a and irx2a controls shh expression during retinogenesis. Developmental Dynamics : an official publication of the American Association of Anatomists. 239(12):3204-3214

Choy, S.W., Cheng, C.W., Lee, S.T., Li, V.W., Hui, M.N., Hui, C.C., Liu, D., and Cheng, S.H. (2010) A cascade of irx1a and irx2a controls shh expression during retinogenesis. Developmental Dynamics : an official publication of the American Association of Anatomists. 239(12):3204-3214

Cheng, C.W., Yan, C.H., Hui, C.C., Strähle, U., and Cheng, S.H. (2006) The homeobox gene irx1a is required for the propagation of the neurogenic waves in the zebrafish retina. Mechanisms of Development. 123(3):252-263