Savabkar, S., Azimzadeh, P., Chaleshi, V., Nazemalhosseini Mojarad, E. and Asadzadeh Aghdaei, H. 2013. Programmed death-1 gene polymorphism (PD-1.5 C/T) is associated with gastric cancer. Gastroenterology and Hepatology from Bed to Bench. 6, 4 (Sep. 2013), Gastroenterol Hepatol Bed Bench 2013;6(4):178–182. DOI:https://doi.org/10.22037/ghfbb.v6i4.435.