1. From the Weill Medical College (J.N.B., V.P., M.J.R., R.B.D.), Cornell University, New York, NY; the Bronx-Lebanon Hospital Center (J.N.B.), Bronx, NY; the University of Minnesota (W.T., M.B.M.), Minneapolis; Washington University (A.K., D.C.R.), St Louis, Mo; the School of Medicine (S.C.H.), University of Utah, Salt Lake City; the School of Medicine (D.W.K.), Wake Forrest University, Winston-Salem, NC; and the University of Alabama at Birmingham (A.O., D.K.A.).