There is some useful information at the addresses, on the Mayo Clinic Health Oasis site. Beneficial and toxic herbs - http://www.mayohealth.org/mayo/9703/htm/herb_sb.htm Herbal supplements - http://www.mayohealth.org/mayo/9406/htm/herbalsu.htm Health effects of herbs - http://www.mayohealth.org/mayo/9707/htm/me_6sb.htm Melatonin - http://www.mayohealth.org/mayo/9708/htm/melaton.htm Homeopathy - http://www.mayohealth.org/mayo/9602/htm/homeopat.htm Web site health information reliability - http://www.mayohealth.org/mayo/9801/htm/judging.htm Clinical drug trials - http://www.mayohealth.org/mayo/9609/htm/clinical.htm Medical quacks - http://www.mayohealth.org/mayo/9706/htm/medical.htm Jim --------------------------------------- Jim Slattery - [log in to unmask] PD Web - [log in to unmask] http://www.bec.net.au/~cwpdg/ ---------------------------------------