AHF, AMERICAN HEALTH FOUNDATION; HENRY FORD HOSPITAL; HINES VETERANS HOSPITAL; LONG ISLAND JEWISH HILLSIDE MEDICAL CENT; LOYOLA UNIV HOSPITAL; NASSAU COUNTY MEDICAL CENTER; NIH, NATL INST OF HEALTH; SKI, SLOAN-KETTERING INST; THOMAS JEFFERSON UNIV HOSPITAL; UNIV OF PA HOSPITAL