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Gutiérrez-Sánchez D, Gómez-García R, López-Medina IM, Cuesta-Vargas AI.Gutiérrez-Sánchez D, et al.Int J Environ Res Public Health. 2021 Jul 23;18(15):7821. doi: 10.3390/ijerph18157821.Int J Environ Res Public Health. 2021.PMID: 34360115Free PMC article.