1 Department of Physical Medicine and Rehabilitation Sancaktepe Prof. Dr. İlhan Varank Training and Research Hospital, Istanbul, Turkey.
2 University of Health Sciences Turkey, Gulhane Faculty of Medicine, Department of Internal Medicine, Ankara, Turkey; Gulhane Training and Research Hospital, Internal Medicine Clinic, Ankara, Turkey.
3 Department of Internal Medicine, Sancaktepe Prof. Dr. İlhan Varank Training and Research Hospital, Istanbul, Turkey; Department of Palliative Care, Sancaktepe Prof. Dr. İlhan Varank Training and Research Hospital, Istanbul, Turkey. Electronic address: umut.safer@sbu.edu.tr.