@article{Li2016, author = "Elliott S. Li and Po-Yin Cheung and Tze-Fun Lee and Min Lu and Megan O'Reilly and Georg M. Schmölzer", title = "{Study flow chart.}", year = "2016", month = "6", url = "https://plos.figshare.com/articles/figure/Study_flow_chart_/3447704", doi = "10.1371/journal.pone.0157249.g001" }