1. ABIM certification revisited—what a difference 30 years make;Wallerstein;J Trans Am Clin Climatol Assoc,1983
2. Ratings of residents' clinical competence and performance on certification examination;Norcini;J Med Educ,1987
3. Relationships of ratings of clinical competence and ABIM scores to certification status;Shea;Acad Med,1993
4. Changes in the medical knowledge of candidates for certification;Norcini;Ann Intern Med,1991
5. Trends in medical knowledge as assessed by the certifying examination in internal medicine;Norcini;JAMA,1989