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Qin J, Yang T, Kong F, Wei J, Shan X.Qin J, et al.Aust N Z J Public Health. 2013 Feb;37(1):52-7. doi: 10.1111/1753-6405.12010.Aust N Z J Public Health. 2013.PMID: 23379806Free article.
Wei J, Yang TB, Luo W, Qin JB, Kong FJ.Wei J, et al. Among authors: qin jb.J Int Med Res. 2013 Apr;41(2):265-75. doi: 10.1177/0300060513476438. Epub 2013 Feb 7.J Int Med Res. 2013.PMID: 23569022Free article.
Qin J, Yang T, Wang H, Feng T, Liu X.Qin J, et al.Iran J Public Health. 2015 Feb;44(2):155-69.Iran J Public Health. 2015.PMID: 25905049Free PMC article.Review.