included six kinds of traditional Chinese medicine: Ren Shen (Panax Ginseng C. A. Mey), Huang Qi (Radix Astragali Seuhedysari), Shu Di (Rehmannia Glutinosa), Dang Gui (Radix Angelica Sinensis), Bai Shao (Paeonia Lactiflora Pall), and Chuan xiong (Rhizoma Ligustici).