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Long KN, Gren LH, Rees CA, West JH, Hall PC, Gray B, Crookston BT.Long KN, et al. Among authors: gren lh.BMC Public Health. 2013 Apr 20;13:372. doi: 10.1186/1471-2458-13-372.BMC Public Health. 2013.PMID: 23601509Free PMC article.
Long KNG, Gren LH, Long PM, Jaggi R, Banik S, Mihalopoulos NL.Long KNG, et al. Among authors: gren lh.Int J Adolesc Med Health. 2017 Aug 1;31(4). doi: 10.1515/ijamh-2017-0035.Int J Adolesc Med Health. 2017.PMID: 28782345
Ball TJ, Joy EA, Goh TL, Hannon JC, Gren LH, Shaw JM.Ball TJ, et al. Among authors: gren lh.Prim Health Care Res Dev. 2015 Jan;16(1):100-8. doi: 10.1017/S1463423613000479. Epub 2014 Jan 28.Prim Health Care Res Dev. 2015.PMID: 24472569