title: Advance directive: do they provide direction?
authors.forename: J M
authors.initials: JM
authors.lastname: Zinberg
mesh_terms: D001291:Attitude of Health Personnel; D032882:Comprehension; D006801:Humans; D007407:Interviews as Topic; D008511:Medicine; D010820:Physicians; D013038:Specialization; D011795:Surveys and Questionnaires; D028761:Withholding Treatment