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2. SAMHSA. Behavioral Health United States 2012. U.S. Department of Health and Human Services Substance Abuse and Mental Health Services Administration. http://store.samhsa.gov/product/Behavioral-Health-United-States-2012/SMA13-4797. Accessed February 6 2015.
3. The Mental Health Residential Care Study: Classification of Facilities and Description of Residents
4. Residential care in Italy
5. Mental Health Atlas;World Health Organization;Country Profiles,2011