[1] CHILDRENS HOSP LOS ANGELES,DIV HEMATOL ONCOL,LOS ANGELES,CA 90027
[2] CHILDRENS HOSP LOS ANGELES,DIV OPHTHALMOL,LOS ANGELES,CA 90027
[3] UNIV SO CALIF,DEPT PEDIAT,LOS ANGELES,CA 90089
[4] UNIV SO CALIF,DEPT OPHTHALMOL,LOS ANGELES,CA 90089
[5] UNIV SO CALIF,DEPT MICROBIOL,LOS ANGELES,CA 90089
[6] UNIV LEICESTER,ICI JOINT LAB,LEICESTER LE1 7RH,ENGLAND