@article{Chen2015, author = "Jingjing Chen and Xiaoxu Han and Minghui An and Jing Liu and Junjie Xu and Wenqing Geng and Yangtao Ji and Hong Shang", title = "{Flow diagram of search, review and data extraction.}", year = "2015", month = "12", url = "https://plos.figshare.com/articles/figure/_Flow_diagram_of_search_review_and_data_extraction_/871126", doi = "10.1371/journal.pone.0082461.g001" }