TOPICS: Bleomycin, free radical, dna strand breakage, g2 phase, testicular cancer, hodgkin lymphoma, pulmonary fibrosis, hyperpigmentation, minimal myelosuppression, dactinomycin, actinomycin d, intercalation, transcription, neuroblastoma, retinoblastoma, osteosarcoma, ewing sarcoma, rhabdomyosarcoma, wilms' tumor, myelosuppression, anthracyclines, daunorubicin, doxorubicin, free radicals, intercalate, transcription, topoisomerase II, solid tumors, leukemias, lymphomas, myelosuppression, alopecia, dilated cardiomyopathy, dexrazoxane, cardiotoxicity