The American Society of Anesthesiologists (ASA) is a medical society that represents anesthesiologists in the United States. The society was founded in 1905 and is headquartered in Schaumburg, Illinois. It has more than 54,000 members and is dedicated to promoting the highest standards of the profession of anesthesiology. The society provides education, advocacy, and research opportunities for its members, as well as resources for patients and the public. The ASA also publishes several journals, including Anesthesiology, the leading peer-reviewed journal in the field.