Solid pseudopapillary tumor of the pancreas: A case series of 9 patients - ÖZKARA, Selvinaz; VARDAR AKER, Fügen; YİTİK, Ali and TOSUN, İlkay and SAĞLAM, Abdullah and AKKAN ÇETİNKAYA, Züleyha and; ÜKÇÜ, Gülistan and; AOĞLU, Nesime (Turkish Journal of Gastroenterology, 2012)