Multiple malignant tumors in the head and neck cancer - KAWAMOTO, Tomoaki; SUMI, Tetsuro; TAKITA, Masaaki; SAKUDA, Masayoshi; OHMAE, Masatoshi; OKUNISHI, Yasuko; TANIGUCHI, Bunsho; LIN, Yue-tzeng; MACHIYA, Takao (Japanese Journal of Oral and Maxillofacial Surgery, 1990)
Keywords: head and neck cancer; multipie primary cancer