TI - Predictors of Mortality of Older Cases with Acute Respiratory Failure Due to Chronic Obstructive Pulmonary Disease Exacerbation Admitted to Intensive Care Units AU - Çalık, Ş. AU - Direnç Külünk, E. AU - Tekgül, Z.T. AU - Doğan, N. AU - Tosun, S. AU - Arı, A. AU - Yazıcı, E. SO - Journal of Critical and Intensive Care 2016;7:89-92. DO - 10.5152/dcbybd.2017.1281