RT Journal Article SR Electronic T1 Treatment Options for Stable Chronic Obstructive Pulmonary Disease: Current Recommendations and Unmet Needs JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP S28 OP S37 DO 10.3949/ccjm.85.s1.05 VO 85 IS 2 suppl 1 A1 Yawn, Barbara A1 Kim, Victor YR 2018 UL http://www.ccjm.org/content/85/2_suppl_1/S28.abstract AB