References: Journal Articles
A huge thank you to www.elotus.org and John K. Chen, Ph.D., Pharm.D., O.M.D., L.Ac. for their tireless research on providing the reference studies and articles.
The Use of an Herbal Formula by Hospital Care Workers During the Severe Acute Respiratory Syndrome Epidemic in Hong Kong to Prevent Severe Acute Respiratory Syndrome Transmission, Relieve Influenza-Related Symptoms, and Improve Quality of Life: A Prospective Cohort Study
Small molecules blocking the entry of severe acute respiratory syndrome coronavirus into host cells. (Chinese Gallnut (Wu Bei Zi) contains tetra-O-galloyl-β-D-glucose (TGG) and luteolin.)