title: Survey of pediatricians certified by the American Board of Pediatrics up to 1975.
mesh_terms: D002170:Canada; D002568:Certification; D005260:Female; D005550:Foreign Medical Graduates; D006801:Humans; D008297:Male; D010372:Pediatrics / Q000193:education / Q000639:trends; D011364:Professional Practice; D012737:Sex Factors; D013044:Specialty Boards; D011795:Surveys and Questionnaires; D014481:United States; D000078329:Workforce