Chobanian et al. The Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure: The JNC 7 Report. JAMA 2003;;289(19):2560-2571. doi:10.1001/jama.289.19.2560
Howard, J. (1965). "Race Differences in Hypertension Mortality Trends: Differential Drug Exposure as a Theory". Systemic Hypertension. Quyển 43. Milbank Mem Fund Q. tr. 202–218. JSTOR3349030.