1. Legal regulations of complementary and alternative medicines in different countries;Ajazuddin;Pharmacognosy Reviews,2012
2. Herbal medicine in the United States: Review of efficacy, safety and regulation;Bent;Journal of General Internal Medicine: Official Journal of the Society for Research and Education in Primary Care Internal Medicine,2008
3. Commonly used herbal medicines in the United States: A review;Bent;The American Journal of Medicine,2004
4. Efficacy, safety, quality control, marketing and regulatory guidelines for herbal medicines (phytotherapeutic agents);Calixto;Brazilian Journal of Medical and Biological Research=Revista Brasileira de Pesquisas Medicas e Biologicas/Sociedade Brasileira de Biofisica,2000
5. Botanical drug development guidance for industry;CDER,2016