[1] CONACYT Inst Nacl Enfermedades Resp Ismael Cosio, Res, Mexico City, DF, Mexico
[2] Ctr Ciencias Genom, Computat Genom Program, Cuernavaca, Morelos, Mexico
[3] Univ Nacl Autonoma Mexico, Fac Ciencias, Mexico City, DF, Mexico
[4] Inst Nac Enfermedades Resp, Mexico City 14080, DF, Mexico