参考文献

Kumamoto, Hiroki; Hayakawa, Hiroyuki; Tanaka, Hiromichi; Shindoh, Satoru; Kato, Keisuke; Miyasaka, Tadashi; Endo, Kazuki; Machida, Haruhiko; Matsuda, Akira Nucleosides and Nucleotides, 1998 ,  vol. 17,  # 1-3  p. 15 - 27