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Christensen H, Batterham PJ, O'Dea B.Christensen H, et al.Int J Environ Res Public Health. 2014 Aug 12;11(8):8193-212. doi: 10.3390/ijerph110808193.Int J Environ Res Public Health. 2014.PMID: 25119698Free PMC article.Review.
Barney LJ, Griffiths KM, Christensen H, Jorm AF.Barney LJ, et al. Among authors: christensen h.BMC Public Health. 2009 Feb 20;9:61. doi: 10.1186/1471-2458-9-61.BMC Public Health. 2009.PMID: 19228435Free PMC article.
Neil AL, Batterham P, Christensen H, Bennett K, Griffiths KM.Neil AL, et al. Among authors: christensen h.J Med Internet Res. 2009 Feb 23;11(1):e6. doi: 10.2196/jmir.1050.J Med Internet Res. 2009.PMID: 19275982Free PMC article.