A mantle of safety: the 50th year of the Royal Flying Doctor Service.
D000401:Aircraft; D001315:Australia; D003142:Communication; D004632:Emergency Medical Services / Q000266:history / Q000458:organization & administration / Q000639:trends; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D011845:Radio