İnsu Yılmaz1, Murat Türk2, Sakine Nazik Bahçecioğlu2. 1. Division of Immunology and Allergy, Department of Chest Diseases, Erciyes University School of Medicine, Kayseri, Turkey. Electronic address: insu2004@yahoo.com. 2. Division of Immunology and Allergy, Department of Chest Diseases, Erciyes University School of Medicine, Kayseri, Turkey.