Majeed, P. D., Saleh, karim J. and Abdullah, H. M. (2019) “Detection of Helicobacterpylori Antigens among Patients with Gastroenteritis in Erbil City, Iraq”, Polytechnic Journal, 9(2), pp. 138-143. doi: 10.25156/ptj.v9n2y2019.pp138-143.