Correspondence and reprints to:
Berna Akinci Ozyurek
Department of Chest Disease, University of Health Sciences Ankara
Atatürk Chest Diseases and Chest Surgery Training and Research Hospital,
Ankara-Turkey.
Phone: +90 554419103, Fax: +90 312 5677700
E-mail:
drberna_1982@yahoo.com
This study is not under consideration by any other journal at the same
time and that it has not been accepted for publication elsewhere, in any
language. I attest that this paper has been read and approved by all
co-authors, and there is no conflict of interest to declare.