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ajod-319	doi.org	https://doi.org/10.4102/ajod.v7i0.319
ajod-319	doi.org	https://doi.org/10.1111/j.1530-0277.2001.tb02250.x
ajod-319	doi.org	https://doi.org/10.1037/0012-1649.26.3.339
ajod-319	doi.org	https://doi.org/10.1093/gerona/59.2.m166
ajod-319	doi.org	https://doi.org/10.1016/0966-6362(94)90012-4
ajod-319	doi.org	https://doi.org/10.1186/1757-1146-5-21
ajod-319	www.who.int	http://www.who.int/bulletin/volumes/89/6/11-020611/en/
ajod-319	doi.org	https://doi.org/10.1093/alcalc/agr145
ajod-319	doi.org	https://doi.org/10.1016/j.drugalcdep.2010.10.019
ajod-319	doi.org	https://doi.org/10.1016/j.gaitpost.2011.02.024
ajod-319	doi.org	https://doi.org/10.1111/j.1468-1331.2010.03142.x
ajod-319	doi.org	https://doi.org/10.1097/aia.0b013e3181ff4dd0
ajod-319	doi.org	https://doi.org/10.1016/j.humov.2003.09.008
ajod-319	doi.org	https://doi.org/10.1016/j.ridd.2013.05.034
ajod-319	www.gpower.hhu.de	http://www.gpower.hhu.de/
ajod-319	doi.org	https://doi.org/10.1186/1475-925x-12-83
ajod-319	doi.org	https://doi.org/10.1016/j.humov.2014.01.008
ajod-319	doi.org	https://doi.org/10.1111/j.1530-0277.2006.00250.x
ajod-319	doi.org	https://doi.org/10.1016/j.humov.2009.01.007
ajod-319	doi.org	https://doi.org/10.1111/acer.12033
ajod-319	doi.org	https://doi.org/10.1002/ddrr.68
ajod-319	doi.org	https://doi.org/10.7196/samj.6249
ajod-319	doi.org	https://doi.org/10.1007/s11065-011-9166-x
ajod-319	doi.org	https://doi.org/10.1111/j.1530-0277.1998.tb03646.x
ajod-319	doi.org	https://doi.org/10.1111/j.1530-0277.1998.tb05908.x
ajod-319	doi.org	https://doi.org/10.1002/hbm.21260
ajod-319	doi.org	https://doi.org/10.1016/j.math.2009.05.009
ajod-319	doi.org	https://doi.org/10.1016/j.alcohol.2010.02.013
ajod-319	doi.org	https://doi.org/10.1016/j.neubiorev.2006.09.006
ajod-319	doi.org	https://doi.org/10.1016/j.gaitpost.2011.01.015
ajod-319	doi.org	https://doi.org/10.1016/j.medengphy.2006.11.010
ajod-319	doi.org	https://doi.org/10.1016/j.gaitpost.2011.04.005