Thanks
NCCIH thanks D. Craig Hopp, Ph.D., and David Shurtleff, Ph.D., NCCIH, for their review of the 2019 update of this publication.
This publication is not protected by copyright and is in the public domain. Duplication is encouraged.
NCCIH has provided this material for informational purposes. It is not intended to replace the medical expertise and advice of your health care provider(s). We encourage you to discuss any decisions regarding treatment or care with your health care provider. Mention of any product, service, or therapy does not constitute endorsement by NCCIH.
