Chinese Journal of Preventive Medicine, Volume 52, Issue 7,2018, Pages 722-726, doi:10.3760/cma.j.issn.0253-9624.2018.07.008
Chinese Journal of Preventive Medicine, Volume 52, Issue 7,2018, Pages 715-721, doi:10.3760/cma.j.issn.0253-9624.2018.07.007
Chinese Journal of Preventive Medicine, Volume 52, Issue 7,2018, Pages 753-754, doi:10.3760/cma.j.issn.0253-9624.2018.07.014
Chinese Journal of Preventive Medicine, Volume 52, Issue 7,2018, Pages 703-708, doi:10.3760/cma.j.issn.0253-9624.2018.07.005