Rapid lung function decline in smokers is a risk factor for COPD and is attenuated by angiotensin-converting enzyme inhibitor use.
Petersen H, Sood A, Meek PM, Shen X, Cheng Y, Belinsky SA, Owen CA, Washko G, Pinto-Plata V, Kelly E, Celli B, Tesfaigzi Y. Rapid lung function decline in smokers is a risk factor for COPD and is attenuated by angiotensin-converting enzyme inhibitor use. Chest. 2014 Apr; 145(4):695-703.