PT - JOURNAL ARTICLE AU - Elsy Viviana Navas AU - David O. Taylor TI - Can patients with COPD or asthma take a beta-blocker AID - 10.3949/ccjm.77a.09133 DP - 2010 Aug 01 TA - Cleveland Clinic Journal of Medicine PG - 498--499 VI - 77 IP - 8 4099 - http://www.ccjm.org/content/77/8/498.short 4100 - http://www.ccjm.org/content/77/8/498.full SO - Cleve Clin J Med2010 Aug 01; 77