Sources for the above include: The Complete Guide To Alternative Medicine, An Illustrated Encyclopedia by C. Norman Shealy, M.D., Ph.D.., New Choices In Natural Healing edited by W. Gottlieb; The Encyclopedia of Alternative Health Care, The Best of Alternative Medicine by R. Chillot/S. Smith; Prevention Magazine and New Age Magazine; Calling All Plant Spirits by J. Neimark, data from Thee Alternative Healing Institute (TAHI), and other materials.