1. Department of Otolaryngology‐Head and Neck Surgery College of Medicine University of Kentucky Lexington KY
2. Department of Otorhinolaryngology‐Head and Neck Surgery McGovern Medical School The University of Texas Health Science Center at Houston Houston TX
3. Department of Otolaryngology and Communicative Sciences Medical College of Wisconsin Kenosha WI
4. Department of Otolaryngology‐Head and Neck Surgery University of Rochester Medical Center Rochester NY