Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) SAIKAWA Masahisa and FUKUDA Satoshi and NAGAHASHI Tatsumi and MITSUHASHI Norio and MURAMATSU Hiroyuki and KAMATA Shin-etsu and YOSHIMOTO Seiichi and HASEGAWA Yasuhisa and OHYAMA Waichiro and HAYASHI Ryuichi and YOSHINO Kunitoshi and IKEDA Hiroshi,MULTIPLE PRIMARY MALIGNANT TUMORS IN PATIENTS WITH HEAD AND NECK SQUAMOUS CELL CARCINOMA: RESULTS OF MULTI-INSTITUTIONAL STATISTICAL ANALYSES,Japanese jornal of Head and Neck Cancer,0911-4335,Japan Society for Head and Neck Cancer,2003,29,4,526-540,https://cir.nii.ac.jp/crid/1390282679704805120,https://doi.org/10.5981/jjhnc1974.29.526