1. Indiana University School of Medicine, 1120 W. Michigan Street, Suite 200, Indianapolis, IN 46202, USA
2. Department of Otolaryngology – Head and Neck Surgery, Indiana University School of Medicine, 1130 W. Michigan Street, Fesler Hall, Suite 400, Indianapolis, IN 46202, USA
3. Goodman Campbell Brain and Spine, 13345 Illinois Street, Carmel, IN 46032, USA
4. Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, 350 W. 11th Street, Indiana University Health Pathology Laboratory, Indianapolis, IN 46202, USA