Hypolipidemic activity of low-cholesterol ovum oil of Rana chensinensis and phytosterol (stigmasterol) in rats - Chang-hui Zhao; Chao Zhao; Hai-qing Ye; Chun-yu Xi; Zheng-ping Zou; Xin-hui Zhou; Ping-ping Hou; Tie-hua Zhang (Journal of Zhejiang University-SCIENCE B, 2019)