J. Li, N. Nishikiori, C. C. Leung, E. Yeoh, and P. Chung, “Is population ageing cancelling out progress made in tuberculosis control in Hong Kong Special Administrative Region SAR (China)? Age-adjusted analysis of case notification data, 1990–2015”, Western Pac Surveill Response J, vol. 8, no. 1, Apr. 2017, doi: 10.5365/wpsar.2016.7.3.011.