Combination effects of salvianolic acid B with low-dose celecoxib on inhibition of head and neck squamous cell carcinoma growth in vitro and in vivo - Zhao, Y; Hao, Y; Ji, H; Fang, Y; Guo, Y; Sha, W; Zhou, Y; Pang, X; Southerland, W M; Califano, J A; Gu, X (Cancer Prev Res, 2010)