Chen YW, Ni L, Ospina-Forero L. Visualising internal migration flows across local authorities in England and Wales. EPA. 2021 Jun;53(4):616-8. doi: 10.1177/0308518X20968568
Chen YW, Ni L, Xu DL, Yang JB. Visualising regional disparities in the risk of COVID-19 at different phases of lockdown in England. EPA. 2021 Jan 19;53(5):883-6. doi: 10.1177%2F0308518X20984165
Christensen T, Riis AH, Hatch EE, Wise LA, Nielsen MG, Rothman KJ, Toft Sorensen H, Mikkelsen EM. Costs and efficiency of online and offline recruitment methods: a web-based cohort study. J Med Internet Res. 2017 Mar 1;19(3):e58. doi: 10.2196/jmir.6716