PET and PET/CT of the neck lymph nodes improves risk prediction in patients with squamous cell carcinoma of the oral cavity - Liao, C T; Wang, H M; Huang, S F; Chen, I H; Kang, C J; Lin, C Y; Fan, K H; Shu-Hang, N; Hsueh, C; Lee, L Y; Yen, T C (J Nucl Med, 2011)