title: Statistical considerations in the design of clinical trials.
mesh_terms: D002986:Clinical Trials as Topic; D003879:Dermatologic Agents / Q000627:therapeutic use*; D006801:Humans; D008722:Methods; D011446:Prospective Studies; D012871:Skin Diseases / Q000175:diagnosis / Q000188:drug therapy*; D012882:Skin Tests; D013223:Statistics as Topic
chemical_list: D003879:Dermatologic Agents