19636046 ^ a b Kearney PM, Whelton M, Reynolds K, Muntner P, Whelton PK, He J (2005). "Global burden of hypertension: analysis of worldwide data". Lancet 365 (9455): 217–23. doi : 10.1016/S0140-6736(05)17741-1 . PMID   15652604 .   ^ Kearney PM, Whelton M, Reynolds K, Whelton PK, He J (January 2004).