Determination of glaucocalyxin A by HPLC and its protein binding rate in plasma of rat Effect of glaucocalyxin A on level of Th1/Th2 type cytokines in mice Determination of Glaucocalyxin A in the Leaves of Plectranthus japonicus (Burm.) Koidz. var. glaucocalyx (Maxim.) Koidz. by HPLC CHEMICAL STRUCTURES 0F GLAUCOCALYXIN A AND B