Groove (paraduodenal) pancreatitis: Report of two cases - ÇİÇEK, Bahattin and ERGÜNER, İlknur and KARA, Fatma and KARAASLAN, Ercan and SARUÇ, Murat and TİFTİKÇİ, Arzu and VARDARELİ, Eser and TÖZÜN, Nurdan (Turkish Journal of Gastroenterology, 2013)