title: [Emphasis on systematic chemical studies of the active principles of Chinese tonics].
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D008516:Medicine, Chinese Traditional; D008518:Medicine, East Asian Traditional; D010936:Plant Extracts / Q000032:analysis*; D010946:Plants, Medicinal / Q000032:analysis*; D012106:Research
chemical_list: D010936:Plant Extracts