Advances in studies on anti-cancer mechanism of Curcumae Rhizoma Study on composition of essential oils in three different origins‘ Curcumae Rhizoma by AMDIS and retention index Effect of vinegar-processed Curcumae Rhizoma on bile metabolism in rats Determination of curdione, curcumol, germacrone, and β-elemene in processed Curcumae Rhizoma from different habitats