Sayre, Casey, and Neal Davies. “Quantification of Three Chiral Flavonoids With Reported Bioactivity in Selected Licensed Canadian Natural Health Products and US Marketed Dietary Supplements”. Journal of Pharmacy & Pharmaceutical Sciences 16, no. 2 (June 14, 2013): 272–278. Accessed February 26, 2025. https://journals.library.ualberta.ca/jpps/index.php/JPPS/article/view/19511.