Studies on effects of calycosin-7-O-β-D-glucoside on prim-O- glucosylcimifugin and cimifugin in vivo pharmacokinetics Quantitative analysis of calycosin-7-O-β-D-glucoside and formononetin in Astraglus membranaceus var. mongholicus by different processing methods Effects of calycosin-7-O-β-D-glucoside on cell apoptosis in cervical cancer HeLa cells and expression of Bcl-2/Bax