1 Orhan Coşkun, MD, is gastroenterologist, Department of Gastroenterology, Ankara City Hospital, Ankara, Turkey.
2 Mehmet Mustafa Erdoğan, MD, is otolaryngologist, Department of Otorhinolaryngology and Head and Neck Surgery, Amasya University Sabuncuoglu Serefeddin Training and Research Hospital, Amasya, Turkey.
3 Mustafa Arslan, MD, is infectious disease specialist, Department of Infectious Diseases and Clinical Microbiology, Amasya University Sabuncuoglu Serefeddin Training and Research Hospital, Amasya, Turkey.