A Comparison of Total Antioxidant Capacities of Concord, Purple, Red, and Green Grapes Using the CUPRAC Assay.
Antioxidants (Basel). 2013 Oct 17;2(4):257-64. doi: 10.3390/antiox2040257.
Antioxidants (Basel). 2013.
PMID: 26784463
Free PMC article.