title: Placebo usage in clinical trials of lifesaving drugs.
mesh_terms: D000241:Adenosine / Q000627:therapeutic use; D002986:Clinical Trials as Topic; D004341:Drug Evaluation; D004992:Ethics, Medical; D006561:Herpes Simplex / Q000188:drug therapy / Q000401:mortality; D006801:Humans; D007258:Informed Consent; D010817:Physician-Patient Relations; D010919:Placebos; D012107:Research Design / Q000592:standards; D012306:Risk
chemical_list: D010919:Placebos; D000241:Adenosine