Assessment of anxiety levels in patients during elective upper gastrointestinal endoscopy and colonoscopy
Feyzullah ERSÖZ, Ahmet Burak TOROS, Gülşen AYDOĞAN, Hasan BEKTAŞ, Özhan ÖZCAN, Soykan ARIKAN
(Turk J Gastroenterol 2010; 21: 29-33) DOI: 10.4318/tjg.2010.0044