Abstract
Briggs, JP; Shurtleff, D
Briggs, JP (reprint author), NIH, Natl Ctr Complementary & Integrat Hlth, 31 Ctr Dr,Ste 2B11, Bethesda, MD 20892 USA.
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION, 2017; 318 (15): 1503