Recertification.
D002568:Certification / Q000379:methods / Q000639:trends; D002983:Clinical Competence; D004501:Education, Medical; D004521:Educational Measurement; D005544:Forecasting; D006801:Humans; D008007:Licensure, Medical / Q000639:trends; D008485:Medical Audit; D008511:Medicine / Q000592:standards; D017063:Outcome Assessment, Health Care; D011364:Professional Practice; D011785:Quality Assurance, Health Care; D011871:Radiology / Q000193:education / Q000592:standards; D013038:Specialization; D013044:Specialty Boards