[1] Univ Autonoma Nuevo Leon, Hosp Univ Dr Jose E Gonzalez, Infect Dis Serv, Madero & Gonzalitos S-N, Monterrey 64460, NL, Mexico
[2] Univ Autonoma Nuevo Leon, Med Sch, Madero & Gonzalitos S-N, Monterrey 64460, NL, Mexico
[3] Univ Autonoma Nuevo Leon, Hosp Univ Dr Jose E Gonzalez, Dept Internal Med, Madero & Gonzalitos S-N, Monterrey 64460, NL, Mexico
[4] Univ Autonoma Nuevo Leon, Hosp Univ Dr Jose E Gonzalez, Anat Pathol & Cytopathol Dept, Madero & Gonzalitos S-N, Monterrey 64460, NL, Mexico