Author Affiliations +
Juan José Díaz-Sacco,1,* Masako Izawa,2 Hideyuki Imai2
11Graduate School of Science and Engineering, University of the Ryukyus, Okinawa 903-0213, Japan
22Faculty of Science, University of the Ryukyus, Okinawa 903-0213, Japan
*To whom correspondence should be addressed. E-mail: bio_man2@yahoo.com