Editorial: The American Board of Otolaryngology--a 50th birthday.
D002568:Certification; D004504:Education, Medical, Undergraduate; D004521:Educational Measurement; D006075:Governing Board; D049673:History, 20th Century; D010036:Otolaryngology / Q000266:history*; D011787:Quality of Health Care; D013038:Specialization; D014481:United States