a Departments of Pathology, Medicine, and Radiation & Cellular Oncology, The University of Chicago, Pritzker School of Medicine, 5841 S. Maryland Avenue, Chicago, IL 60637, USA b Section of Oral and Maxillofacial Surgery, Pathology and Dental Anesthesiology, The Ohio State University College of Dentistry, Columbus, OH 43218, USA c Department of Health Studies, The University of Chicago, 5841 S....