1. Alberta Human Rights Act 2000 Revised Statutes of Alberta, A-25.5 http://www.qp.alberta.ca/documents/Acts/A25P5.pdf
2. American Nurses Association The Florence Nightingale Pledge http://nursingworld.org/FunctionalMenuCategories/AboutANA/WhereWeComeFrom/FlorenceNightingalePledge.aspx
3. Diagnostic and Statistical Manual of Mental Disorders
4. American Society of Addiction Medicine 2011 Public policy statement: Short definition of addiction http://www.asam.org/for-the-public/definition-of-addiction