[1] WAKE FOREST UNIV,BOWMAN GRAY SCH MED,WINSTON SALEM,NC
[2] NYU,MED CTR,NEW YORK,NY
[3] HOSP UNIV PENN,PHILADELPHIA,PA 19104
[4] UNIV CALIF LOS ANGELES,SCH MED,LOS ANGELES,CA
[5] CLEVELAND CLIN FDN,CLEVELAND,OH 44195
[6] GERMANTOWN HOSP & MED CTR,PHILADELPHIA,PA
[7] UNIV PITTSBURGH,SCH MED,PITTSBURGH,PA
[8] TUFTS UNIV NEW ENGLAND MED CTR,BOSTON,MA
[9] UNIV MICHIGAN HOSP,ANN ARBOR,MI 48109