A C Peter Powles

A C Peter Powles, MD, FRACP, FRCPC, ABSM, specializes in Sleep Medicine, including adolescent and pediatric as well as adult sleep disorders. He is Professor Emeritus, Division of Respirology, Department of Medicine at McMaster University, Hamilton, Ontario, is on the Active Staff of St. Joseph's Healthcare, Hamilton and St. Joseph's Health Centre, Toronto, and is a Diplomate of the American Board of Sleep Medicine.

Powles is one of the authors of the 2011 case definition, International Consensus Criteria, as well as, one of the authors of the 2003 Canadian Consensus Criteria for Myalgic Encephalomyelitis, published as Myalgic Encephalomyelitis/Chronic Fatigue Syndrome:Clinical Working Case Definition,Diagnostic and Treatment Protocols.