[1] IMSS, HGR 36, Dept Dermatol, Puebla, Mexico
[2] IMSS, HGR 36, CMN Manuel Avila Camacho, Dept Internal Med, Puebla, Mexico
[3] Benemerita Univ Autonoma Puebla, Dept Immunol & Rheumatol, Puebla, Mexico
[4] IMSS, HGR 36, Syst Autoimmune Dis Res Unit, Puebla, Mexico
[5] Labs Clin Puebla, Puebla, Mexico