Purgina Bibianna M, Bastaki Jassem M, Pantanowitz Liron, Yip Linwah, Seethala Raja R
Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA.
JAMA Otolaryngol Head Neck Surg. 2013 Aug 1;139(8):855-7. doi: 10.1001/jamaoto.2013.3816.