1. The Warren Alpert Medical School of Brown University (J.E.H., M.R.M., G.L.-M., G.E.P., J.A.C.), Providence, Rhode Island 02903
2. Columbia University College of Physicians and Surgeons (J.C.-G., F.D.M., M.E.D.), New York, New York 10027
3. Royal College of Surgeons in Ireland (F.D.M.), Dublin 2, Ireland
4. University of Utah and Intermountain HealthCare (T.F.P.), Salt Lake City, Utah 84111
5. Swedish Medical Center (D.A.N.), Seattle, Washington 98122
6. Montefiore Medical Center/Albert Einstein College of Medicine (P.B.), Bronx, New York 10461