Plummer-Vinson syndrome and dilation therapy: A report of two cases - DEMİRCİ, Fikret; SAVAŞ, M. Cemil; KEPKEP, Necip; OKAN, Vahap; YILMAZ, Mehmet; BÜYÜKBERBER, Mehmet; GÜLŞEN, M. Taner (Turkish Journal of Gastroenterology, 2005)