Composition #1: Huang, Yuan-Chao., Hwang, Tsong-Long., Yang, Yu-Liang., Wu, Shih-Hsiung., Hsu, Mei-Hua., Wang, Jih-Pyang., Chen, Sheng-Chih., Huang, Li-Jiau., Liaw, Chih-Chuang. Acetogenin and Prenylated Flavonoids from Helminthostachys zeylanica with Inhibitory Activity on Superoxide Generation and Elastase Release by Neutrophils. PLANTA MEDICA, 2010, vol. 76, no. 5, p. 447–453. DOI: 10.1055/s-0029-1186221.
[
DOI link]
