Coleman, H. G., Gray, R. T., Lau, K. W., McCaughey, C., Coyle, P. V., Murray, L. J., & Johnston, B. T. (2016). Socio-economic status and lifestyle factors are associated with achalasia risk: A population-based case-control study. World J Gastroenterol.

Coleman, Helen G., Ronan T. Gray, Kar W. Lau, Conall McCaughey, Peter V. Coyle, Liam J. Murray, e Brian T. Johnston. "Socio-economic Status and Lifestyle Factors Are Associated With Achalasia Risk: A Population-based Case-control Study." World J Gastroenterol 2016.

Coleman, Helen G., et al. "Socio-economic Status and Lifestyle Factors Are Associated With Achalasia Risk: A Population-based Case-control Study." World J Gastroenterol 2016.