Classification of childhood arthritis: divide and conquer.
Petty
R E
RE
Southwood
T R
TR
D000293:Adolescent; D001168:Arthritis / Q000145:classification*; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D012219:Rheumatology / Q000592:standards*