Quantitation of Human Papillomavirus DNA in Plasma of Oropharyngeal Carcinoma Patients - Hongbin Cao; Alice Banh; Shirley Kwok; Xiaoli Shi; Simon Wu; Trevor Krakow; Brian Khong; Brindha Bavan; Rajeev Bala; Benjamin A. Pinsky; Dimitrios Colevas; Nader Pourmand; et al. (2011)