Bircan Ahmet, Kapucuoglu Nilgun, Ozturk Onder, Ciris Metin, Gokirmak Munire, Akkaya Ahmed
Department of Pulmonary Medicine, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey.
Ann Saudi Med. 2007 Sep-Oct;27(5):375-7. doi: 10.5144/0256-4947.2007.375.