The Circle and Triangle symbol has long been connected to the A.A. Fellowship. It was adopted as an official A.A. symbol at the International Convention in St. Louis in 1955, and from that point on was widely used in the Fellowship.
The American College of Radiology, founded in 1923, is a non-profit professional medical association composed of diagnostic radiologists, radiation oncologists, interventional radiologists, nuclear medicine physicians, and medical physicists.
The National Health Service (NHS) is the publicly funded national healthcare system for England and one of the four National Health Services of the United Kingdom. It is the largest single-payer healthcare system in the world.