Mark D Neuman1, Nabil M Elkassabany2. 1. Department of Anesthesiology and Critical Care, Division of Geriatric Medicine, Department of Medicine, Leonard Davis Institute for Health Economics, University of Pennsylvania, Philadelphia, Pennsylvania. 2. Department of Anesthesiology and Critical Care, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.
Authors: Harlan M Krumholz; Zhenqiu Lin; Patricia S Keenan; Jersey Chen; Joseph S Ross; Elizabeth E Drye; Susannah M Bernheim; Yun Wang; Elizabeth H Bradley; Lein F Han; Sharon-Lise T Normand Journal: JAMA Date: 2013-02-13 Impact factor: 56.272