Herbal medicine expert witnesses may opine on herbal medicine, acupuncture, and homeopathy. The Alternative Medicine Blog writes:
Many children with cancer use alternative medicine in their treatment, according to a recent research review. For the review, investigators looked at 28 studies with a total of 3,526 participants (all of whom were children). In 20 of those studies, the researchers found that prevalence of complementary/alternative medicine use ranged anywhere from 6 to 91 percent.
Herbal remedies were found to be the most popular modality in the reviewed studies, followed by therapeutic nutrition and faith-healing. Commonly reported reasons for alternative medicine use included the relief of symptoms, as well as support of ongoing use of conventional cancer treatment (such as chemotherapy).
For more, see about.com.