in view of the fact that relatives of patient with other connective tissue diseases may show immunologic abnormalities , we investigated cellular ( ppd , sk-sd , candidine and diphteria-tetanous toxoid cutaneous tests ) and humoral ( igg , igm , iga . ch50 , c3 , rheumatoid factor and ana ) immune responses in first degrees relatives ( parents and siblings ) of children with dermatomyositis .
C0009782
connective tissue
C0011633
dermatomyositis