1 Resident, Department of Oral and Maxillofacial Surgery, University of Illinois at Chicago, Chicago, IL.
2 Chief, Department of Oral and Maxillofacial Surgery, Jesse Brown Veterans Affairs Medical Center; and Clinical Associate Professor, Department of Oral and Maxillofacial Surgery, University of Illinois at Chicago, Chicago, IL.
3 Professor and Chair, Department of Oral and Maxillofacial Surgery, University of Illinois at Chicago, Chicago, IL.
4 Assistant Professor, Department of Oral and Maxillofacial Surgery, University of Illinois at Chicago, Chicago, IL. Electronic address: ncall@uic.edu.