1. Pritzker School of Medicine University of Chicago Chicago Illinois USA
2. Program in Quantitative Biomedical Sciences Geisel School of Medicine Dartmouth College Hanover New Hampshire USA
3. Department of Surgery Section of Otolaryngology University of Chicago Chicago Illinois USA
4. Stritch School of Medicine Loyola University Chicago Maywood Illinois USA
5. Univerisity of Chicago Division of the Biological Sciences Chicago Illinois USA
6. Department of Surgery Section of Neurological Surgery University of Chicago Chicago Illinois USA