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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.
The Appropriateness of Selected Medical and Surgical Procedures: Relationship to Geographic Variations. Ann Intern Med. ;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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