an autoradiographic assay for 6-thioguanine-resistant ( tgr ) lymphocytes was used to determine the frequency of in vivo derived variant t lymphocytes in peripheral blood from multiple sclerosis ( ms ) patients treated with monthly intravenous infusions of 750 mg/m2 of cyclophosphamide ( cp ) .
C0026769
multiple sclerosis
C0010583
cyclophosphamide