Identification of a subgroup with worse prognosis among patients with poor-risk testicular germ cell tumor

Takahiro Kojima, Koji Kawai, Kunihiko Tsuchiya, Takashige Abe, Nobuo Shinohara, Toshiaki Tanaka, Naoya Masumori, Shigeyuki Yamada, Yoichi Arai, Shintaro Narita, Norihiko Tsuchiya, Tomonori Habuchi, Hiroyuki Nishiyama