title: Letter: Double-blind studies in dermatology.
mesh_terms: D002986:Clinical Trials as Topic; D003872:Dermatitis / Q000188:drug therapy; D006801:Humans; D007664:Ketosteroids / Q000627:therapeutic use; D011246:Pregnadienetriols / Q000627:therapeutic use*; D012871:Skin Diseases / Q000188:drug therapy*
chemical_list: D007664:Ketosteroids; D011246:Pregnadienetriols