Probably Norman Spinrad's most anthologized story. The first story purchased for Harlan Ellison's DANGEROUS VISIONS anthology. Nominated for awards. A man who has proven he can do anything finds he has terminal cancer and sets out to defeat with psychedelic drug cocktails which put his consciousness inside his own body to combat the metaphoric Carcinoma Angels. Inspired by the actual near death experience of Harrison Wintergreen. Has inspired an actual medical treatment.