Richard A Cooper1. 1. Leonard Davis Institute of Health Care Economics, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. coopera@wharton.upenn.edu
Authors: Richard Smith; Steven C Stain; David W McFadden; Samuel R G Finlayson; Daniel B Jones; K Marie Reid-Lombardo Journal: J Gastrointest Surg Date: 2014-04-19 Impact factor: 3.452
Authors: Kara Odom Walker; Gery Ryan; Robin Ramey; Felix L Nunez; Robert Beltran; Robert G Splawn; Arleen F Brown Journal: Am J Public Health Date: 2010-11 Impact factor: 9.308