Studies on the Chemical Constituents of Stems of Erycibe schmidtii Craib. Studies on the Chemical Constituents of Artemisia dalailamae Kraschen The Structure of Lyciumide A Determination of scopolin, chlorogenic acid, scopoletin, isochlorogenic acid A, isochlorogenic acid B and isochlorogenic acid C in plants of Erycibe Studies on chemical constituents from roots of Pterospermum heterophyllum Studies on chemical constituents from roots of Pterospermum heterophyllum Study on chemical constituents from whole herbs of Xanthium mongolicum