RHEUMATOID ARTHRITIS IN LIBERIA, WITH AN ASSESSMENT OF SEROLOGICAL FINDINGS.
D000293:Adolescent; D001171:Arthritis, Juvenile; D001172:Arthritis, Rheumatoid; D044383:Black People; D006801:Humans; D007988:Liberia
ADOLESCENCE; ARTHRITIS, JUVENILE RHEUMATOID; ARTHRITIS, RHEUMATOID; LIBERIA; NEGROES