Drimane-type Sesquiterpenes with a Dioxabicyclooctane Skeleton from the Fruiting Bodies of Nigrofomes melanoporus and Their Cytotoxicity - Chan, Hsiu-Hui; Juang, Shin-Hun; Thang, Tran Dinh; Chen, Min-Yu; Kuo, Ping-Chung; Yang, Mei-Lin; Ngan, Nguyen Thi; Linh, Nguyen Ngoc; Wu, Tian-Shung (Planta Medica, 2012)