Oral epithelial barrier function and the role of nuclear factor kappa-β pathway in the pathogenesis of aphthous ulceration - GÜNHAN, Ömer; GÜNAL, Armağan; AVCI, Arzu; KURGAN, Şivge; DERECİ, Ömür and KURT, Bülent and CELASUN, Bülent (Turkish Journal of Gastroenterology, 2013)