title: They call it competition. Presidential address.
authors.affiliation: Department of Surgery, Scripps Clinic Medical Group, La Jolla, CA 92037.
authors.forename: M A
authors.initials: MA
authors.lastname: Block
mesh_terms: D000329:Advertising; D003406:Credentialing; D004465:Economic Competition; D004470:Economics, Medical; D013502:General Surgery / Q000191:economics; D006761:Hospitals; D006801:Humans; D008389:Marketing of Health Services; D012017:Referral and Consultation; D013964:Thyroid Neoplasms / Q000209:etiology; D014481:United States