^American Health Ester-C 1000 mg with Citrus Bioflavonoids Tablets - 180 CountUPC 076630169844 (revised Jul 2021)
^American Health Products - Ester C W/Citrus Bioflavonoids, 1000 mg, 180 veg tablets, American Health Products. Amazon. UPC 076630169844 (revised Dec 2014)