TY - JOUR T1 - What is the role of roflumilast in chronic obstructive pulmonary disease? JF - Cleveland Clinic Journal of Medicine JO - Cleve Clin J Med SP - 13 LP - 15 DO - 10.3949/ccjm.84a.15150 VL - 84 IS - 1 AU - Chris Lau AU - Atul C. Mehta AU - Umur Hatipoglu Y1 - 2017/01/01 UR - http://www.ccjm.org/content/84/1/13.abstract N2 - ER -