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   Rupert Langer et al, 2007, American Journal of Clinical Pathology CrossRef
2. Thymidylate Synthase 5′- and 3′-Untranslated Region Polymorphisms Associated with Risk and Progression of Squamous Cell Carcinoma of the Head and Neck
   Zhengdong Zhang et al, 2004, Clinical Cancer Research CrossRef
3. Mechanism of 5-fluorouracil required resistance in human hepatocellular carcinoma cell line Bel7402
   Jing Jin, 2002, World Journal of Gastroenterology CrossRef
4. p53 Alterations Predict Tumor Response to Neoadjuvant Chemotherapy in Head and Neck Squamous Cell Carcinoma: A Prospective Series
   Arnauld Cabelguenne et al, 2000, Journal of Clinical Oncology CrossRef