Fig. 4From: Variation in hypertension clinical practice guidelines: a global comparisonSankey diagrams illustrating the 1st-, 2nd- and 3rd-step therapy recommendations made by different income settings. A, ACEi or ARB; B, beta-blocker; C, CCB; D, diuretic; α, alpha-blocker. “/” indicates a choice between drug classes, whilst “+” indicates concurrent prescription of multiple drug classesBack to article page