1 Department of Dermatology, University of Nebraska Medical Center, Omaha, Nebraska; School of Medicine, Creighton University, Omaha, Nebraska.
2 Department of Dermatology, University of Nebraska Medical Center, Omaha, Nebraska.
3 Department of Dermatology, University of Nebraska Medical Center, Omaha, Nebraska; School of Medicine, University of Utah, Salt Lake City, Utah.
4 Department of Dermatology, University of Nebraska Medical Center, Omaha, Nebraska; University of Missouri-Kansas City School of Medicine, Kansas City, Missouri.
5 Department of Otolaryngology - Head and Neck Surgery, University of Missouri, Columbia, Missouri.
6 Department of Dermatology, University of Nebraska Medical Center, Omaha, Nebraska. Electronic address: [email protected].