a
College of Pharmacy, Dongguk University-Seoul, Seoul 100-715, Korea
b
College of Life Sciences and Biotechnology, Korea University, Seoul 136-701, Korea
E-mail: ychoi@korea.ac.kr
;
Fax: +82-2-3290-3650
;
Tel: +82-2-3290-3650
c
Chemical Biology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Ochang, Cheongwon, Chungbuk 363-883, Korea
E-mail: leehs@kribb.re.kr
d
College of Pharmacy, Korea University, Chungnam 339-700, Korea
e
College of Pharmacy, Chungnam National University, Daejeon 305-764, Korea