HPLC Determination of 6-Gingerol in Rhizoma Zingiberis Recens Analysis of Essential Oil from Rhizoma Zingiberis by GC-MS Determination of Cineole in Banxiaxiexintang Decoction Different Combinations of by GC Preparation and Characterization of Nanoemulsion from Volatile of Rhizoma Zingiberis Study on quality standard of extracts from Rhizoma Zingiberis by supercritical fluid extraction Effect of Rhizoma Zingiberis on Anoxic or Cooled Mice