Chapter Number: 4Authors: Bashar Saad, Omar SaidPages From: 71 To: 85Book Title: Greco-Arab and Islamic Herbal Medicine: Traditional System, Ethics, Safety, Efficacy, and Regulatory IssuesPublisher: John Wiley & SonsEdition: 1Date: Tuesday, January 18, 2011External Link: http://onlinelibrary.wiley.com/doi/10.1002/9780470944363.ch4/summary