S Saied HOSSEINI-ASL; Farhad POURFARZI; Abazar BARZEGAR; Mohammad MAZANI; Nima FARAHMAND; Elham NIASTI; Abbas YAZDANBOD; Reza DIDEVAR; Homa AKHAVAN; Reza MALEKZADEH. Decrease in Gastric Cancer Susceptibility by MTHFR C677T Polymorphism in Ardabil Province, Iran. Turkish Journal of Gastroenterology 2019, 24, 117-121.