Gregson, D. B., Low, D. E., Cohen, M. M., Cooter, N. B., Connon, J. J., Wolman, S. L., & Simor, A. E. (1989). The prevalence of Campylobacter pylori gastritis among asymptomatic adults.

Gregson, D B., D E. Low, M M. Cohen, N B. Cooter, J J. Connon, S L. Wolman, và A E. Simor. The Prevalence of Campylobacter Pylori Gastritis Among Asymptomatic Adults. 1989.

Gregson, D B., et al. The Prevalence of Campylobacter Pylori Gastritis Among Asymptomatic Adults. 1989.