title: Quality control of surgeons--performance on board examinations.
authors.forename: L M
authors.initials: LM
authors.lastname: Nyhus
mesh_terms: D002568:Certification; D004503:Education, Medical, Graduate / Q000592:standards; D004521:Educational Measurement; D013502:General Surgery / Q000193:education*; D011786:Quality Control; D014481:United States