title: Primary chemotherapy: concepts and issues.
mesh_terms: D000818:Animals; D002470:Cell Survival / Q000187:drug effects; D003131:Combined Modality Therapy; D004195:Disease Models, Animal; D005260:Female; D006801:Humans; D008297:Male; D008954:Models, Biological; D009154:Mutation; D009369:Neoplasms / Q000188:drug therapy*; D009374:Neoplasms, Experimental / Q000188:drug therapy; D013997:Time Factors