10.1371/journal.pone.0021769.t001 Yuan Zhang Yuan Zhang Xiaoping Lin Xiaoping Lin Martin Desrosiers Martin Desrosiers Wei Zhang Wei Zhang Na Meng Na Meng Liping Zhao Liping Zhao Demin Han Demin Han Luo Zhang Luo Zhang Demographic characteristics of the study population. Public Library of Science 2011 characteristics 2011-06-30 00:15:36 Dataset https://plos.figshare.com/articles/dataset/_Demographic_characteristics_of_the_study_population_/430936 <p>-: no results.</p>