H. Y. S Cheung, C. C Chung, W. W. C Tsang, J. C. H Wong, K. K. K Yau and M. K. W. Li
Archives of Surgery 144 ( 12 ): 1127 - 1132 , 2010
C. C Chung, W. C. S Magalhaes, J Gonzalez Bosquet and S. J. Chanock
Carcinogenesis 31 ( 1 ): 111 - 120 , 2010