Grootendorst Paul, Hollis Aidan, Levine David K, Pogge Thomas, Edwards Aled M
Leslie Dan Faculty of Pharmacy and School of Public Policy and Governance, University of Toronto, Toronto, Ont.
CMAJ. 2011 Apr 5;183(6):681-5. doi: 10.1503/cmaj.100375. Epub 2010 Dec 13.