@article{Huang2020, author = "Ya-Ting Huang and Ying-Wei Wang and Chou-Wen Chi and Wen-Yu Hu and Rung Lin Jr and Chih-Chung Shiao and Woung-Ru Tang", title = "{Flow chart of the sampling and matching process.}", year = "2020", month = "2", url = "https://plos.figshare.com/articles/figure/Flow_chart_of_the_sampling_and_matching_process_/11878476", doi = "10.1371/journal.pone.0229176.g002" }