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Mawer T, Kent K, Williams AD, McGowan CJ, Murray S, Bird ML, Hardcastle S, Bridgman H.Mawer T, et al. Among authors: williams ad.BMC Health Serv Res. 2022 Jun 17;22(1):789. doi: 10.1186/s12913-022-08182-0.BMC Health Serv Res. 2022.PMID: 35715836Free PMC article.
Bird ML, Hill K, Ball M, Williams AD.Bird ML, et al. Among authors: williams ad.J Aging Phys Act. 2009 Oct;17(4):444-54. doi: 10.1123/japa.17.4.444.J Aging Phys Act. 2009.PMID: 19940323Clinical Trial.
Bird M, Hill KD, Ball M, Hetherington S, Williams AD.Bird M, et al. Among authors: williams ad.Arch Gerontol Geriatr. 2011 Mar-Apr;52(2):211-6. doi: 10.1016/j.archger.2010.03.021. Epub 2010 Apr 22.Arch Gerontol Geriatr. 2011.PMID: 20416959Clinical Trial.
Bird ML, Hill KD, Robertson I, Ball MJ, Pittaway JK, Williams AD.Bird ML, et al. Among authors: williams ad.J Aging Res. 2013;2013:751310. doi: 10.1155/2013/751310. Epub 2013 Oct 7.J Aging Res. 2013.PMID: 24223307Free PMC article.
O'Brien J, Hamilton K, Williams A, Fell J, Mulford J, Cheney M, Wu S, Bird ML.O'Brien J, et al.Trials. 2018 Aug 7;19(1):425. doi: 10.1186/s13063-018-2808-z.Trials. 2018.PMID: 30086780Free PMC article.