A revolution is underway in medicine that could result in the mainstream acceptance of ancient healing techniques. Practitioners of accupuncture, massage and herbal remedies have often clashed with western-style doctors over a lack of strong scientific backing. But patients have been more receptive. A 1993 Harvard Medical School study found one-third of Americans use some form of alternative medicine. Each year, Americans spend more than 13 billion dollars out-of-pocket on these procedures and products. As Minnesota Public Radio's Lorna Benson reports, consumer interest in alternative medicine is forcing a dramatic change in the structure of modern medicine.