1. From Boston University School of Medicine (A.V.C.), Boston, Mass; Rush University Medical Center (G.L.B., H.R.B.), Chicago, Ill; Veterans Affairs Medical Center (W.C.C.), Memphis, Tenn; University of Michigan (L.A.G.), Ann Arbor, Mich; State University of New York at Buffalo School of Medicine (J.L.I. Jr.), Buffalo, NY; University of Mississippi Medical Center (D.W.J.), Jackson, Miss; University of Miami (B.J.M.), Miami, Fla; University of Alabama at Birmingham (S.O.), Birmingham, Ala; Case Western...