[1] CASE WESTERN RESERVE UNIV,CLEVELAND,OH 44106
[2] CHILDRENS MEM HOSP,CHICAGO,IL 60614
[3] MT SINAI SCH MED,NEW YORK,NY
[4] NEW ENGLAND RES INST,WATERTOWN,MA 02172
[5] ALBERT EINSTEIN COLL MED,BRONX,NY 10467
[6] JOHNS HOPKINS SCH MED,BALTIMORE,MD
[7] HENRY FORD HOSP,DETROIT,MI 48202
[8] HOWARD UNIV,COLL MED,WASHINGTON,DC
[9] WASHINGTON UNIV,SCH MED,ST LOUIS,MO