Survival days of patients with metastatic spinal tumors of lung cancer requiring surgery: a prospective multicenter study

T Takuya Takahashi T Takashi Hirai Y Yuki Shiratani A Akinobu Suzuki K Kenichiro Kakutani S Satoshi Kato H Hiroyuki Tominaga H Hirokazu Inoue H Hirokatsu Sawada N Norihiko Takegami K Kazuo Nakanishi H Hideaki Nakajima M Masayuki Ishihara T Tsutomu Oshigiri T Toru Funayama T Takuya Iimura S Shinji Tanishima H Hiroaki Nakashima D Daisuke Yamabe K Ko Hashimoto K Koji Uotani M Masahiro Funaba N Narihito Nagoshi K Kazu Kobayakawa T Toshitaka Yoshii K Kazuyuki Watanabe T Toshio Nakamae T Takashi Kaito G Gen Inoue S Shiro Imagama K Kota Watanabe T Takeo Furuya