The Centre for Addiction and Mental Health (CAMH, pronounced , ) is a psychiatric teaching hospital located in Toronto and ten community locations throughout the province of Ontario, Canada. It reports being the largest research facility in Canada for mental health and addictions. The hospital was formed in 1998 from the amalgamation of four separate institutions – the Queen Street Mental Health Centre, the Clarke Institute of Psychiatry, the Addiction Research Foundation, and the Donwood Institute. It is Canada's largest mental health teaching hospital, and the only stand-alone psychiatric emergency department in Ontario. CAMH has 90 distinct clinical services across inpatient, outpatient, day treatment, and partial hospitalization models. CAMH has been the site of major advancements in psychiatric research, including the discovery of the Dopamine receptor D2. History CAMH was formed from the 1998 merger of the Queen Street Mental Health Centre with the Clarke Institute of Psychiatry, Addiction Research Foundation, and Donwood Institute. Queen Street Mental Health Centre The Provincial Lunatic Asylum opened on January 26, 1850. It was subsequently renamed Asylum for the Insane, then Hospital for the Insane, then Ontario Hospital (1919), and then the Queen Street Mental Health Centre (1966). It had also been called the Toronto Lunatic Asylum and 999 Queen Street West. The original buildings were constructed in a series of rigid lines and sharp angles, consistent with the belief at the time that orderly physical structure would facilitate orderly mental states for the patients. High walls segregated the patients from the community, establishing a long-standing stigma about the facility. The Queen Street Site of CAMH contained the Samuel A. Malcolmson Lecture Theatre, named for the site's Chief Psychiatrist and Clinical Director of Forensics. In 2009, however, Malcolmson was subject to a disciplinary hearing of Ontario's College of Physicians and Surgeons, following that he sexually abused a patient and fathered a child with her. Malcomson pleaded "no contest" and resigned his license to practice. The lecture hall was renamed the Queen Street Auditorium. Reforms were made after a series of deaths at the Queen Street Mental Health Centre and newspaper accounts of involuntary drug treatment, electroshock therapy, and prison-like conditions. Clarke Institute of Psychiatry The institute was founded in 1966 and officially opened by Ontario Premier John P. Robarts. It was named the Clarke Institute of Psychiatry, after Charles Kirk Clarke, a pioneer in mental health in Canada. The institute took over the clinical,