Prevalence and risk factors of helicobacter pylori in Turkey: a nationally-representative, cross-sectional, screening with the 13C-Urea breath test
1 Department of Public Health, School of Medicine, Marmara University, Istanbul, Turkey
2 Institution of Population Studies, Hacettepe University, Ankara, Turkey
BMC Public Health 2013, 13:1215 doi:10.1186/1471-2458-13-1215Published: 21 December 2013
Additional file 1: Figure S1:
Distribution of the cities selected for sample for the Helicobacter pylori prevalence study.
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