Greetngs ! For further information on " making healthy choices" we now have another source of information: the new 1999 PDR (Physician's Desk Reference) Herbal Medicine The main branches of public libraries in the U.S. usually have such tomes for reference. or, depending on your state of affluency, Medical Economics publishes it. [log in to unmask] (Mary Manfredi) PS: FYI only....This is not an advertisement.