AU - Watkins MT TI - SUrvival analysis in amputees based on physical independence grade achievement—invited critique PT - JOUR DP - 2009 TA - Archives of Surgery pages = {552}, VI - 144 IP - 6 AID - 10.1001/archsurg.144.6.552 [doi] 4100 - http://dx.doi.org/10.1001/archsurg.144.6.552 SO - Archives of Surgery June 1, 2009 144(6):552