Ried, K.; Sullivan, T. R.; Fakler, P.; Frank, O. R.; Stocks, N. P. (2012). "Effect of cocoa on blood pressure". The Cochrane Database of Systematic Reviews (8): CD008893. doi:10.1002/14651858.CD008893.pub2. PMID 22895979.
nih.gov
ncbi.nlm.nih.gov
Ried, K.; Sullivan, T. R.; Fakler, P.; Frank, O. R.; Stocks, N. P. (2012). "Effect of cocoa on blood pressure". The Cochrane Database of Systematic Reviews (8): CD008893. doi:10.1002/14651858.CD008893.pub2. PMID 22895979.