Syam, A. F.; Fauzi, A.; Abdullah, M.; Simadibrata, M.; Makmun, D.; Manan, C.; Rani, A. A. Demographical Distribution on the Incidence of Helicobacter Pylori Infection in Jakarta: Obtaining Samples from 5 Municipalities. InaJGHE 2014, 15, 73-77.