@article{Chen2015, author = "Yi-Xiang Chen and Fang-Qian Xu", title = "{All pictures are the cases of .}", year = "2015", month = "12", url = "https://plos.figshare.com/articles/figure/_All_pictures_are_the_cases_of_/1279967", doi = "10.1371/journal.pone.0115935.g002" }