1. Cancer Incidence and Mortality in Hong Kong 1998–1999. Hong Hong Kong Cancer Registry. Available at: http://www3.ha.org.hk/cancereg/pub.asp. Accessed December 30, 2004
2. Cancer statistics 1996;Parker;CA Cancer J Clin,1996
3. A tabulated summary of the FDG PET literature;Gambhir;J Nucl Med,2001
4. Surgical treatment of squamous carcinoma of the oral tongue;Whitehurst;Arch Otolaryngol,1977
5. Palpation and sonography of metastases of the cervical lymph nodes;Leicher-Duber;Rontgenblatter,1989