Increased morbidity among pediatric house staff.
D000041:Absenteeism; D004636:Emergency Service, Hospital; D005257:Fellowships and Scholarships; D005260:Female; D006801:Humans; D007396:Internship and Residency / Q000458:organization & administration; D008297:Male; D009518:New York; D009784:Occupational Diseases / Q000453:epidemiology*; D010372:Pediatrics / Q000193:education*; D011247:Pregnancy; D011248:Pregnancy Complications / Q000453:epidemiology; D011446:Prospective Studies