JAMA (2013) - Comments
pubmed: 24065011  doi: 10.1001/jama.2013.278018  issn: 1538-3598  issn: 0098-7484 

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Jeffrey J. Perry, Ian G. Stiell, Marco L. A. Sivilotti, Michael J. Bullard, Corinne M. Hohl, Jane Sutherland, Marcel Émond, Andrew Worster, Jacques S. Lee, Duncan Mackey, Merril Pauls, Howard Lesiuk, Cheryl Symington, George A. Wells