Simultaneous Determination of Four Tanshinones by UPLC-TQ/MS and Their Pharmacokinetic Application after Administration of Single Ethanol Extract of Danshen Combined with Water Ext... 由 Hong-Die Cai, Shu-Lan Su, Yonghui Li, Zhenhua Zhu, Jianming Guo, Yue Zhu, Sheng Guo, Dawei Qian, Jinao Duan