RHEUMATOID ARTHRITIS: PREVALENCE IN A TROPICAL AREA.
D001168:Arthritis; D001172:Arthritis, Rheumatoid; D004813:Epidemiology; D006801:Humans; D015995:Prevalence; D011647:Puerto Rico; D014329:Tropical Climate
ARTHRITIS, RHEUMATOID; EPIDEMIOLOGY; PUERTO RICO; TROPICAL CLIMATE