来源:BMC Psychiatry , 2021
作者:Jens Klotsche;Marc Walter;Undine E. Lang;等
关键词:Spatiotemporal movement;Wellbeing;...
使用许可:CC BY
来源:BMC Public Health , 2014
作者:Charles C Branas;Kent DW Bream;Frances K Barg;等
关键词:Geographic random sampling;Social surveys;...
使用许可:CC BY