1. Department of Radiation OncologyUniversity of Iowa Hospitals and Clinics Iowa City Iowa
2. Department of Holden Comprehensive Cancer CenterUniversity of Iowa Hospitals and Clinics Iowa City Iowa
3. Department of DermatologyUniversity of Iowa Hospitals and Clinics Iowa City Iowa
4. Department of Otolaryngology—Head and Neck SurgeryUniversity of Iowa Hospitals and Clinics Iowa City Iowa