Institution: | (1) Department of Experimental Pathology, CINVESTAV-IPN, A.P. 14-740, 07000 México, D.F., México;(2) Department of Genetics and Molecular Biology, CINVESTAV-IPN, A.P. 14-740, 07000 México, D.F., Mexico;(3) CISEI, INSP, Av. Universidad No. 115, Cuernavaca, Mor., México |