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Results of the Antihypertensive and Lipid‐Lowering Treatment to Prevent Heart Attack Trial (ALLHAT): no difference in primary outcome among the three regimens. RR=relative risk; Cl=confidence interval; A=amlodipine; C=chlorthalidone; L=lisinopril; CHD=coronary heart disease. Adapted with permission from JAMA. 2002;288:2981–2997. 14
