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health law, the branch of law dealing with various aspects of health care, including the practices of caregivers and the rights of patients. Physicians historically have set their own standards of care, and their conduct has usually been judged by comparing it with that of other physicians. Ethical canons, or codes, generally focused on professional etiquette and courtesy toward fellow physicians rather than on relationships with patients. The Hippocratic oath, formulated in the 5th century...