Clinical evidence of field cancerization in patients with oral cavity cancer in a betel quid chewing area. - Chun-Ta Liao; Wallace, Christopher G.; Li-Yu Lee; Chuen Hsueh; Chien-Yu Lin; Kang-Hsing Fan; Hung-Ming Wang; Shu-Hang Ng; Chih-Hung Lin; Chung-Kan Tsao; I-How Chen; Shiang-Fu Huang; et al. (Oral Oncology, 2014)