https://www.selleckchem.com/pr....oducts/usp22i-s02.ht
e. heart failure, hypertension, atrial fibrillation and/or coronary heart disease during follow-up), respiratory drugs and nitrates. In total, 1312 COPD patients with a mean age of 69.7±9.2 years were included. In patients with a cardiovascular indication (n=755, mean age of 70.4±8.8 years), current use of cardioselective β-blockers was significantly associated with a reduced risk of COPD exacerbations (HR 0.69, 95% CI 0.57-0.85). In contrast, in subjects without a cardiovascular indication (n=557, mean age of 68.8±9.7 years), curren
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