Elevated Levels of Urinary Prostaglandin E Metabolite Indicate a Poor Prognosis in Ever Smoker Head and Neck Squamous Cell Carcinoma Patients

V. D Kekatpure, J. O Boyle, X. K Zhou, A. J Duffield Lillico, N. D Gross, N. Y Lee, K Subbaramaiah, J. D Morrow, G Milne, S. M Lippman and A. J. Dannenberg

Cancer Prevention Research 2 ( 11 ): 957 - 965 , 2009