- Correspondence to Dr Aaron S Kesselheim, Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 1620 Tremont St., Suite 3030, Boston, MA 02120, USA;
- Received November 20, 2012
- Revised April 1, 2013
- Accepted April 3, 2013
- First published April 25, 2013.
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