The need for additional alkylating agents.
D000477:Alkylating Agents / Q000627:therapeutic use*; D002051:Burkitt Lymphoma / Q000188:drug therapy; D004273:DNA, Neoplasm / Q000037:antagonists & inhibitors; D008558:Melphalan / Q000627:therapeutic use; D008956:Models, Chemical; D009374:Neoplasms, Experimental / Q000188:drug therapy*; D009588:Nitrogen Mustard Compounds / Q000627:therapeutic use
D000477:Alkylating Agents; D004273:DNA, Neoplasm; D009588:Nitrogen Mustard Compounds; D008558:Melphalan