Use of unapproved or off-label drugs in Japan for the treatment of graft-versus-host disease and post-transplant viral infection

Yachiyo Kuwatsuka, Yoshiko Atsuta, Akihiro Hirakawa, Naoyuki Uchida, Yoshihiro Inamoto, Yuho Najima, Kazuhiro Ikegame, Tetsuya Eto, Yukiyasu Ozawa, Tatsuo Ichinohe, Masami Inoue, Takafumi Kimura, Shinichiro Okamoto, Koichi Miyamura, Takahiro Fukuda