1The European Parliament and the Counncil of the European Union. Directive 2004/24/EC of the European Parliament and the Council [E/OL]. http://www. emea. europa. eu/htms/general/direct/ legislation/background. htm.
3European Medicines Agency. Guidance on specifications: Test procedures and acceptance criteria for herbal substances, herbal preparations and herbal medicinal products/traditional herbal medicinal products [E/OL]. http://www. emea. europa. eu/pdfs/ human/qwp/282000en, pdf.
6European Medicines Agency. Guideline on Quality of Combination Herbal Medicinal Products/Traditional Herbal Medicinal Products[S].2007.
7European Medicines Agency. Guideline on Specifications.Test Procedures and Acceptance Criteria for Herbal Substances,Herbal Preparations and Herbal Medicinal Products/Traditional Herbal Products[S].2006.