[1] Hosp Mil Cent, Rheumatol & Immunol, Bogota, Colombia
[2] Univ Mil Nueva Granada, Grp Inmunol Clin Aplicada, Bogota, Colombia
[3] Pontificia Univ Javeriana, Hlth Econ, Bogota, Colombia
[4] BIOMAB IPS, Rheumatol, Bogota, Colombia
[5] Hosp Mil Cent, Epidemiol, Bogota, Colombia
[6] Hosp Mil Cent, Cuenta Alto Costo, Bogota, Colombia