Dong Wha Pharm. Co., Ltd. Patent: EP2394993 A2, 2011 ; Title/Abstract Full Text Show Details Ryu, Jei Man; Lee, Jin Soo; Park, Whui Jung; Hwang, Yun Ha; Kim, Ki Yoon Patent: US2011/306606 A1, 2011 ; US 20110306606 A1