Restricting Effects of Geologic Background System on Genuine Grude Drugs in Sichuan Studies on good agricultural practice for Pheretima ynamic change of flavonoids‘ content in various extent of cortex moutan carbonisatum Preliminary study on general regulations for processing of different processing procedures of prepared slices of Chinese crude drugs in China Suggestions for improving quality control of excipients used in processing of crude drugs Comparative study oll phamacognostics between root of Millettia pulchra var.1axior and Fordia cauliflora Optimizing RAPD reaction system and authentic genuineness related genetic background of Fructus Evodia Studies on Identification of Tougucao Derived from Clematis Species Optimization of integration of field processing and processing crude drugs of Polygoni Multiflori Radix Statistical analysis of residues of heavy metals in Chinese crude drugs Discussion on origin change reason of Sichuan genuine crude drugs Cyathulae Radix INVESTIGATION AND STUDY ON THE RESOURCES OF MEDICINAL PLANTS IN HUBEI PROVINCE TLC Identification of Organochlorine (BHC,DDT) Pesticide Residues in Crude Drugs A Probe into Good Agricultural Practice for Traditional Chinese Drugs Macroscopic Identification of Rhizome of Iridaceae SURVEY OF ECOLOGICAL DISTRIBUTION OF THE PRECIOUS PLANT CRUDE DRUGS IN CHINA Suggestions for improving quality control of extrinsic residues in crude drugs Determination of aflatoxin B1, B2, G1, G2 in Armeniacae Semen Amarum by high-performance liquid chromatography-tandem mass spectrometry