title: Are more effective placebos complicating clinical trials?
authors: 5 East 98th Street, New York, NY 10029.
authors: Paul
authors: P
authors: Greene
mesh_terms: D058917:Adenosine A2 Receptor Antagonists / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D008297:Male; D010300:Parkinson Disease / Q000188:drug therapy*; D011687:Purines / Q000627:therapeutic use*
chemical_list: D058917:Adenosine A2 Receptor Antagonists; D011687:Purines