1. Gil-Jae Jeong, Hyang-Min Byun, Jung Mogg Kim, Ho Yoon, Han-Gon Choi, Won-Ki Kim, Sun-Jae kim, Yu-Kyoung Oh, Biodistribution and tissue expression kinetics of plasmid DNA complexed with polyethylenimines of different molecular weight and strucuture, Journal of Controlled Release, 118, 118-125 (2007). 2. Balakrishnan Prabagar, Bong-Kyu Yoo, Jong-Soo Woo, Jung-Ae Kim, Jong-Dal Rhee, Ming Guan Piao, Chul Soon Yong, Han-Gon Choi, Enhanced bioavailability of poorly water-soluble clotrimazole * 1. Gil-Jae Jeong, Hyang-Min Byun, Jung Mogg Kim, Ho Yoon, Han-Gon Choi, Won-Ki Kim, Sun-Jae kim, Yu-Kyoung Oh, Biodistribution and tissue expression kinetics of plasmid DNA complexed with polyethylenimines of different molecular weight and strucuture, Journal of Controlled Release, 118, 118-125 (2007). * 2. Balakrishnan Prabagar, Bong-Kyu Yoo, Jong-Soo Woo, Jung-Ae Kim, Jong-Dal Rhee, Ming Guan Piao, Chul Soon Yong, Han-Gon Choi, Enhanced bioavailability of poorly water