Cnidicin, a Coumarin, from the Root of Angelica koreana, Inhibits the Degranulation of Mast Cell and the NO Generation in RAW 264.7 Cells - Ryu, Shi Yong; Kou, Na Youn; Choi, Hong Seok; Ryu, Hyun; Kim, Tae Sung; Kim, Kyeong Man (Planta Medica, 2001)