[Schizophrenia: a public health problem of substantial size in the Mexican population].
Fraga-Díaz del Castillo
Irene
I
del Socorro Alvarado-Ruvalcaba
María
M
Sauceda-Sauceda
Arturo
A
Velarde-del Río
Luz Teresa
LT
Fragoso-Morales
Lilia Esperanza
LE