[1] Yale Univ, Sect Rheumatol, Dept Med, New Haven, CT USA
[2] Yale Sch Publ Hlth, New Haven, CT USA
[3] Alberto Hurtado Univ Peruana Cayetano Heredia, Fac Med, Lima, Peru
[4] Yale Univ, Waterbury Hosp, Sect Rheumatol,Dept Internal Med, Dept Med, New Haven, CT USA
[5] Minist Salud Peru, Lima, Peru
[6] Univ Peruana Cayetano Heredia, Sch Publ Hlth, Epidemiol STD & HIV Unit, Lima, Peru
[7] Yale Univ, Rheumatol Sect, Dept Med, Westport, CT USA
[8] Yale Sch Publ Hlth, Westport, CT USA
[9] VA Connecticut Healthcare Syst, Rheumatol Sect, Westport, CT USA