Mahmut, Nazira, Inoue, Kaoru, Fujinaga, Yukako, Arimitsu, Hideyuki, Sakaguchi, Yoshihiko, Hughes, Lynn, Hirst, Robert, Murphy, Tom, Tsuji, Takao, Watanabe, Toshihiro, Ohyama, Tohru, Karasawa, Tadahiro, Nakamura, Shinichiro, Yokota, Kenji, and Oguma, Kenji (2002) Mucosal immunisation with Clostridium botulinum type C 16 S toxoid and its non-toxic component. Journal of Medical Microbiology, 51. pp. 813-820.