Etoposide, methotrexate, actinomycin D, cyclophosphamide, and vincristine for the treatment of metastatic, high-risk gestational trophoblastic disease. - Schink,J.C.; Singh,D.K.; Rademaker,A.W.; Miller,D.S.; Lurain,J.R. (Obstet Gynecol, 1992)