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[1]
Orally administered streptococcal preparation, OK-432 augments the antitumor immunity of patients with gastric or colorectal cancer[J] . Yoshinori Nio,Kazuhisa Ohgaki,Toshiharu Tsuchitani,Shiro Imai,Takahiro Shiraishi,Takayoshi Tobe.Biotherapy . 1990 (3)