Birkmeyer, John D. MD, FACS†,*; Dimick, Justin B. MD∗,†; Birkmeyer, Nancy J.O. PhDâ€
∗Center for Surgical Evaluation and Policy, Department of Surgery, University of Michigan, Ann Arbor, MI, USA
†VA Outcomes Group, VA Medical Center, White River Junction, VT, USA
Correspondence address: John D Birkmeyer, Section of General Surgery, University of Michigan, 2920 Taubman Center, 1500 East Medical Center Drive, Ann Arbor, MI 48109-0331 USA
Submitted September 17, 2003; accepted November 26, 2003.
Supported by a grant from the National Cancer Institute (1 RO1 CA098481-01A1). Dr John Birkmeyer is a consultant for the Leapfrog Group and chairs its expert panel on Evidence-Based Hospital Referral. Dr Dimick is also a consultant for the Leapfrog Group.
1No competing interests declared.
