Oklahoma Hospital Association
The Oklahoma Hospital Association (OHA) is the state affiliate of the American Hospital Association. It was established on May 21, 1919 after meeting of representatives from 20 Oklahoma hospitals, electing Dr. Fred S. Clinton as the first president. He served as president for the first nine years of the organization's existence. Today, OHA represents more than 150 hospitals and health care entities, such as nursing homes, home health agencies, surgery centers, and medical supply businesses in the U.S. state of Oklahoma.
Services include legislative tracking and representation, communications, educational programs, health care industry information and data, and quality and risk management resources. In conjunction with other organizations OHA as worked on workforce shortage initiatives. 
- "Oklahoma Association Organized", Hospital management, Volume 58, Clissold Pub. Co., 1944, page 42.
- Clinton, Fred S., "The Beginnings of the Oklahoma State Hospital Association", The Chronicles of Oklahoma, Vol 22, pg 338.
- "History" Oklahoma Hospital Association