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Vaz L, Kraak W, Batista M, Honório S, Miguel Fernandes H.Vaz L, et al. Among authors: kraak w.Int J Environ Res Public Health. 2021 Feb 5;18(4):1499. doi: 10.3390/ijerph18041499.Int J Environ Res Public Health. 2021.PMID: 33562438Free PMC article.
van Tonder R, Hendricks S, Starling L, Surmon S, Viviers P, Kraak W, Stokes KA, Derman W, Brown JC.van Tonder R, et al. Among authors: kraak w.J Sci Med Sport. 2024 Jan;27(1):57-62. doi: 10.1016/j.jsams.2023.10.011. Epub 2023 Oct 21.J Sci Med Sport. 2024.PMID: 37932203Free article.