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Chest Medicine Associates (CMA) is a Pulmonary Disease, Critical Care Medicine, and Sleep Disorders practice based in Portland, Maine. The practice was created in 1992 by Drs. Peter Bates and William Williams. At the end of 2005, the practice consisted of eleven physician partners and several employed physicians, with practice sites in Portland and Brunswick, Maine. In addition to medical care, CMA is involved in medical education, clinical research, and administration at Maine Medical Center and Midcoast Hospital.
