From St. Elizabeth Health Center (C.M.D.), Youngstown, Ohio, SUNY-Stony Brook (R.D.B.), Stony Brook, New York, Maine Medical Center (D.E.C.), Portland, Maine, University of Tennessee (B.J.D.), Knoxville, Tennessee, Memorial Health Center (F.E.D.), Savannah, Georgia, Carolinas Medical Center (M.A.G.), Charlotte, North Carolina, Blanchfield Army Community Hospital (T.K.), Fort Campbell, Kentucky, Loyola University Medical Center (P.B.L., F.A.L.), Maywood, Illinois, Allegheny General Hospital (L.O.), Pittsburgh, Pennsylvania, Eastern Virginia Medical System (L.J.W.), Norfolk, Virginia, and Lancaster General Hospital (C.E.W.), Lancaster, Pennsylvania.