Oxygen therapy.
D000005:Abdomen / Q000601:surgery; D005260:Female; D006801:Humans; D007743:Labor, Obstetric; D010102:Oxygen Inhalation Therapy / Q000706:statistics & numerical data; D011182:Postoperative Care; D011247:Pregnancy; D012140:Respiratory Tract Diseases / Q000628:therapy; D012151:Resuscitation