1. Department of PathologyUniversity of Iowa Hospitals and ClinicsIowa City Iowa U.S.A.
2. Department of Otolaryngology–Head and Neck SurgeryUniversity of Iowa Hospitals and ClinicsIowa City Iowa U.S.A.
3. Department of RadiologyDivision of Nuclear MedicineUniversity of Iowa Hospitals and ClinicsIowa City Iowa U.S.A.