title: Time-limited vs unlimited physician certification.
authors.affiliation: Baystate Medical Center, Springfield, Massachusetts.
authors.forename: Paul
authors.initials: P
authors.lastname: Friedmann
mesh_terms: D000553:Ambulatory Care / Q000592:standards*; D002568:Certification / Q000592:standards*; D005260:Female; D017048:Health Care Costs / Q000706:statistics & numerical data*; D006760:Hospitalization / Q000706:statistics & numerical data*; D006801:Humans; D007388:Internal Medicine / Q000592:standards*; D008297:Male; D011320:Primary Health Care / Q000592:standards*; D019984:Quality Indicators, Health Care