1 Department of Pediatric Pulmonology, Dr. Sami Ulus Maternity and Children's Health and Diseases Training and Research Hospital, University of Health Sciences, Ankara, Turkey.
2 Department of Pediatric Pulmonology, Faculty of Medicine, Gazi University, Ankara, Turkey.
3 Department of Pediatric Pulmonology, Meram Medicine Faculty, Necmettin Erbakan University, Konya, Turkey.
4 Department of Pediatrics, Meram Medicine Faculty, Necmettin Erbakan University, Konya, Turkey.
5 Department of Pediatric Pulmonology, Cengiz Gokcek Maternity and Children's Hospital, Gaziantep, Turkey.
6 Department of Pediatric Pulmonology, Faculty of Medicine, Erciyes University, Kayseri, Turkey.
7 Department of Medical Education, Faculty of Medicine, Gazi University, Ankara, Turkey.
8 Department of Pediatrics, Faculty of Medicine, Gazi University, Ankara, Turkey.