title: Who can say yes (or no) to a physician--and how does the physician know they can?
authors.forename: Michael P
authors.initials: MP
authors.lastname: McQuillen
authors.forename: Pierre
authors.initials: P
authors.lastname: Tariot
mesh_terms: D000544:Alzheimer Disease / Q000523:psychology / Q000628:therapy; D017028:Caregivers / Q000523:psychology; D003657:Decision Making; D006801:Humans; D007258:Informed Consent / Q000523:psychology* / Q000592:standards; D016743:Mental Competency / Q000523:psychology* / Q000592:standards; D009103:Multiple Sclerosis / Q000523:psychology / Q000628:therapy; D010349:Patient Compliance / Q000523:psychology; D010358:Patient Participation / Q000523:psychology*; D010817:Physician-Patient Relations / Q000941:ethics*