An Anti-Inflammatory ent-Kaurane from the Stems of Annona squamosa that Inhibits Various Human Neutrophil Functions - Yeh, Shang-Hsin; Chang, Fang-Rong; Wu, Yang-Chang; Yang, Yu-Liang; Zhuo, Shi-Kai; Hwang, Tsong-Long (Planta Medica, 2005)