Cite
APA Citation
Forman, D., Newell, D. G., Fullerton, F., Yarnell, J. W., Stacey, A. R., Wald, N., & Sitas, F. (1991). association between infection with Helicobacter pylori and risk of gastric cancer: evidence from a prospective investigation.. BMJ, 302(6788), 1302–1305. http://access.bl.uk/ark:/81055/vdc_100137796914.0x000011