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Authors
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Pérez-López, Faustino R. https://orcid.org/0000-0002-2801-416X
Chedraui, Peter https://orcid.org/0000-0002-1556-3979
Pérez-Roncero, Gonzalo R.
Martínez-Domínguez, Samuel J.
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Article History
Received: 7 May 2018
Accepted: 7 February 2019
First Online: 19 February 2019
Compliance with ethical standards
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: The authors declare that they have no conflicts of interest.
: This systematic review and meta-analysis were performed following the Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) statement for meta-analyses. Formal institutional review board approval was not required due to the fact that this analysis consisted of the pooling of published studies.
