University of Iowa College of Dentistry - Craniofacial Clinical Research Center and Department of Periodontics, Iowa City, Iowa, United States
University of Iowa Hospitals and Clinics, Iowa City, Iowa, United States
University of Iowa Hospitals and Clinics, Iowa City, Iowa, United States
University of Iowa Health Care, Iowa City, Iowa, United States
University of Iowa, Iowa City, Iowa, United States
University of Iowa Hospitals and Clinics, Iowa City, Iowa, United States
National Hospital of Neurology and Neurosurgery, London, United Kingdom
University of Iowa, Iowa City, Iowa, United States
University of Rochester Medical Center, Rochester, New York, United States
University of Iowa, Iowa City, Iowa, United States