title: For debate: Do retrospective controls make clinical trials "inherently fallacious?".
mesh_terms: D002986:Clinical Trials as Topic / Q000379:methods*; D003348:Cortisone / Q000627:therapeutic use; D006801:Humans; D010488:Polyarteritis Nodosa / Q000188:drug therapy; D012189:Retrospective Studies
chemical_list: D003348:Cortisone