[1] Univ Autonoma San Luis Potosi, Fac Med, Dept Psiquiatria, Av V Carranza 2405, San Luis Potosi 78210, Slp, Mexico
[2] Univ Autonoma San Luis Potosi, Fac Med, Dept Bioquim, San Luis Potosi, Slp, Mexico
[3] Hosp Cent Dr Ignacio Morones Prieto, Div Med Interna, San Luis Potosi, Slp, Mexico