Kang, Jae Gon; Hur, Jong Hyun; Choi, Sung Jun; Choi, Gyung Ja; Cho, Kwang Yun; Ten, Leonid N; Park, Ki Hun; Kang, Kyu Young Bioscience, biotechnology, and biochemistry, 2002 , vol. 66, # 12 p. 2677 - 2682