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