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APA Citation
Danesh, J., Youngman, L., Clark, S., Parish, S., Peto, R., & Collins, R. (1999). helicobacter pylori infection and early onset myocardial infarction: case-control and sibling pairs study. BMJ, 319(7218), 1157–1162. http://access.bl.uk/ark:/81055/vdc_100140192071.0x000023