Correlation of contents between soil nutrients and calycosin and formononetin in Hedysari Radix Spectrum-effect relationship of active fraction from Hedysari Radix on improving immunity Astragali Radix and Hedysari Radix molecular identification of SSR primers screening and fingerprints code Effects of serums containing Buzhong Yiqi decoction with Astragalus Radix or Hedysari Radix on anti-immunosenescence in spleen lymphocytes of SAMP8 mice Prevention and treatment of Hedysari Radix polysaccharide on carbon tetrachloride-induced hepatic fibrosis and bone loss Response of hedysari radix nitrogen absorption and polysaccharide accumulation to fertilizer application Research progress in study on chemical constituents and antitumor effects in Hedysarum polybotrys