Effect of climate change on genuine medicinal materials producing areas during last 2 000 years—Alisma orientale and Citrus aurtantium as examples Characterization of rhizospheric microbial flora of Hunyuan Astragali Mongolici Radix by ARISA fingerprinting Application of plant metabolomic technology in study on several Shanxi genuine medicinal materials Study on traceability system of genuine medicinal materials Application analysis on theory of "correlation in quality, curative effect, and metabolism" in quality control of genuine medicinal materials