Research in pediatric surgery.
D002648:Child; D005260:Female; D005315:Fetal Diseases / Q000601:surgery; D013502:General Surgery / Q000639:trends*; D006801:Humans; D010372:Pediatrics / Q000639:trends*; D011247:Pregnancy; D011652:Pulmonary Circulation; D012106:Research; D013156:Splenectomy; D014481:United States