1. Harvard Medical SchoolBostonMassachusettsU.S.A.
2. Division of Nuclear MedicineBeth Israel HospitalBostonMassachusettsU.S.A.
3. Division of Nuclear MedicineNew England Deaconess HospitalBostonMassachusettsU.S.A.
4. Division of Nuclear MedicineBrigham and Women's HospitalBostonMassachusettsU.S.A.