@article{Lee2015, author = "Chun-Liang Lee and Yi-Shan Lin and Yaw-Chung Chen", title = "{Pre-filtering algorithm.}", year = "2015", month = "12", url = "https://plos.figshare.com/articles/figure/_Pre_filtering_algorithm_/1564986", doi = "10.1371/journal.pone.0139301.g004" }