1. Cancer statistics, 2003;Jemal;CA Cancer J Clin,2003
2. Cancer Facts & Figures 2002,2002
3. Cancer of the stomach;Karpeh,2001
4. Cyclooxygenase-2;Dannenberg;Lancet Oncol,2001
5. Cyclooxygenase-2 expression is upregulated in squamous cell carcinoma of the head and neck;Chan;Cancer Res,1999