Ivan J Stojanov1, Sook-Bin Woo2. 1. Resident, Oral and Maxillofacial Pathology, Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, MA, USA. Electronic address: ivan_stojanov@hsdm.harvard.edu. 2. Associate Professor of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, MA, USA; Co-director, Center for Oral Pathology, StrataDx Inc., Lexington, MA, USA.