Coşkun Özer Demirtaş; Pınar Ata; Ali Çetin; Ayberk Türkyılmaz; Deniz Guney Duman. A Large Turkish Pedigree With Multiple Endocrine Neoplasia Type 1 Syndrome Carrying a Rare Mutation: C.1680_1683 Del TGAG. Turkish Journal of Gastroenterology 2020, 31, 508-514.