A half century of X-ray.
D000758:Anesthesia; D000773:Anesthesia, Obstetrical; D000776:Anesthesiology; D005260:Female; D006176:Gynecology; D006801:Humans; D009774:Obstetrics; D011247:Pregnancy; D014965:X-Rays
ANESTHESIA/in gynecology and obstetrics; ROENTGEN RAYS