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Study design, methods, procedures, analysis, and validation in the Rand studies of coronary angiography, carotid edarterec-tomy, and diagnostic upper gastrointestinal endoscopy. Closes with conclusions from the studies and their implications for physician education, reimbursement, health policy, and future research.
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The Appropriateness of Selected Medical and Surgical Procedures: Relationship to Geographic Variations. Ann Intern Med. 1990;113:416. doi: 10.7326/0003-4819-113-5-416_3
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Published: Ann Intern Med. 1990;113(5):416.
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Print ISSN: 0003-4819 | Online ISSN: 1539-3704
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