1. Bloom, A. (1994), Centr. Eur. J. Public Health 2, 27–32.
2. Summers, A. O. (1992), Curr. Biol. 3, 271–276.
3. Yamada, A., Miyagishima, N., and Matsunaga, T. (1997), J. Marine Biotechnol. 5, 46–49.
4. Wang, C. L., Maratukulam, P. D., Lum, A. M., Clark, D. S., and Keasling, J. D. (2000), Appl. Environ. Microbiol. 66, 4497–4502.
5. Matsunaga, T., Takeyama, H., Nakao, T., and Yamazawa, A. (1999), J. Biotechnol. 70, 33–38.