Joseph Bernstein1. 1. Department of Orthopaedic Surgery, University of Pennsylvania, 424 Stemmler Hall, Philadelphia, PA, 19104, USA, orthodoc@uphs.upenn.edu.
Authors: J N Katz; E Losina; J Barrett; C B Phillips; N N Mahomed; R A Lew; E Guadagnoli; W H Harris; R Poss; J A Baron Journal: J Bone Joint Surg Am Date: 2001-11 Impact factor: 5.284
Authors: Jeffrey N Katz; Jane Barrett; Nizar N Mahomed; John A Baron; R John Wright; Elena Losina Journal: J Bone Joint Surg Am Date: 2004-09 Impact factor: 5.284
Authors: John D Birkmeyer; Therese A Stukel; Andrea E Siewers; Philip P Goodney; David E Wennberg; F Lee Lucas Journal: N Engl J Med Date: 2003-11-27 Impact factor: 91.245