Sleep quality in patients with chronic low back pain: A cross-sectional study assesing its relations with pain, functional status and quality of life. - Sezgin, Melek; Hasanefendioğlu, Ebru Zeliha; Sungur, Mehmet Ali; Incel, Nurgül Arıncı; Çimen, Özlem Bölgen; Kanık, Arzu; Şahin, Günşah (Journal of Back & Musculoskeletal Rehabilitation, 2015)