PO-101: Podoplanin expression in oropharyngeal cancer influences staging and prognosis only in p16 negative tumors. (February 2015) - Broglie Daeppen, M.A.; Roessle, M.; Kiessling, S.Y.; Soltermann, A.; Haile, S.R.; Huber, G.F.; Stoeckli, S.J.