Look before you leap.
D000970:Antineoplastic Agents / Q000627:therapeutic use; D002986:Clinical Trials as Topic / Q000191:economics; D066246:ErbB Receptors / Q000235:genetics / Q000378:metabolism; D000077156:Gefitinib; D006801:Humans; D009369:Neoplasms / Q000191:economics* / Q000628:therapy*; D018579:Patient Selection; D011799:Quinazolines / Q000627:therapeutic use
D000970:Antineoplastic Agents; D011799:Quinazolines; D066246:ErbB Receptors; D000077156:Gefitinib