title: Is rheumatoid arthritis in African descendants from North and South America the same?
authors.forename: G S
authors.initials: GS
authors.lastname: Alarcón
mesh_terms: D000349:Africa / Q000208:ethnology; D001172:Arthritis, Rheumatoid / Q000208:ethnology*; D006801:Humans; D009656:North America / Q000453:epidemiology; D013020:South America / Q000453:epidemiology