Keywords hypertension;candesartan cilexetil;candesartan;losartan;multicenter studies;double-blind method;randomized controlled trials;antihyperteasive agents;

• 关键词高血压;坎地沙坦酯;坎地沙坦;氯沙坦;多中心研究;双盲法;随机对照试验;抗高血压药;