Inhibition of Trypsin and Chymotrypsin by Anti-Inflammatory Triterpenoids from Compositae Flowers - Rajic, Antonio; Akihisa, Toshihiro; Ukiya, Motohiko; Yasukawa, Ken; Sandeman, R Mark; Chandler, David S; Polya, Gideon M (Planta Medica, 2001)