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Boehmert C, Wiedemann P, Croft R.Boehmert C, et al. Among authors: croft r.Int J Environ Res Public Health. 2016 Oct 9;13(10):992. doi: 10.3390/ijerph13100992.Int J Environ Res Public Health. 2016.PMID: 27735851Free PMC article.Clinical Trial.
Wiedemann PM, Freudenstein F, Böhmert C, Wiart J, Croft RJ.Wiedemann PM, et al.Int J Environ Res Public Health. 2017 Jun 8;14(6):620. doi: 10.3390/ijerph14060620.Int J Environ Res Public Health. 2017.PMID: 28594366Free PMC article.