title: Defensiveness in the definition of placebo.
mesh_terms: D000328:Adult; D001291:Attitude of Health Personnel; D003674:Defense Mechanisms; D004992:Ethics, Medical; D006801:Humans; D008511:Medicine; D010820:Physicians; D010865:Pilot Projects; D011570:Psychiatry; D011613:Psychotherapy; D012660:Semantics; D013038:Specialization; D011795:Surveys and Questionnaires; D009626:Terminology as Topic