Retrospective comparison of pneumonia occurence in patients with chronic obstructive pulmonary disease using inhaled combination or inhaled long acting beta agonist alone Journal title: Ege Tıp Dergisi Authors: Tuğba ÖNALAN, Ayşegül BAYSAK, Jülide Çeldir EMRE, Özer ÖZDEMİR, Mustafa Hikmet ÖZHAN Subject(s):
