Prevalence of rheumatoid factors in juvenile rheumatoid arthritis.
Ballardini
P
P
Busachi
C A
CA
Amoresano
A
A
Masi
M
M
Ventura
S
S
Cavalli
G
G
D001171:Arthritis, Juvenile / Q000097:blood*; D002648:Child; D002675:Child, Preschool; D006801:Humans; D015995:Prevalence; D012217:Rheumatoid Factor / Q000032:analysis*
D012217:Rheumatoid Factor