Alan A. Cohen1Department of Family Medicine, University of Sherbrooke, Sherbrooke, QC J1H 5N4, Canada, Vincent Morissette-Thomas1Department of Family Medicine, University of Sherbrooke, Sherbrooke, QC J1H 5N4, Canada, Luigi Ferrucci2The National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA, Linda P. Fried3Department of Epidemiology, Columbia University Mailman School of Public Health, New York, NY 10032, USA
1Department of Family Medicine, University of Sherbrooke, Sherbrooke, QC J1H 5N4, Canada
2The National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
3Department of Epidemiology, Columbia University Mailman School of Public Health, New York, NY 10032, USA
Received: July 5, 2016Accepted: August 26, 2016Published: September 8, 2016