title: Professional courtesy then and now.
authors.affiliation: Yale University School of Medicine, New Haven, CT 06510.
authors.forename: J
authors.initials: J
authors.lastname: Algazy
authors.forename: M
authors.initials: M
authors.lastname: Lachs
mesh_terms: D032781:Codes of Ethics; D004992:Ethics, Medical; D005251:Fees, Medical; D006801:Humans; D007400:Interprofessional Relations; D010817:Physician-Patient Relations; D012017:Referral and Consultation / Q000592:standards; D014481:United States