title: Implicit demand characteristics in research funding sources--it's not just some sources.
authors.affiliation: Treatment Research Institute and University of Pennsylvania, Philadelphia, PA, USA. tmclellan@tresearch.org
authors.forename: A Thomas
authors.initials: AT
authors.lastname: McLellan
mesh_terms: D016265:Conflict of Interest / Q000191:economics*; D005381:Financing, Organized / Q000191:economics* / Q000941:ethics; D012109:Research Support as Topic / Q000191:economics* / Q000941:ethics