?url_ver=Z39.88-2004&rft_id=doi%3A10.3390%2Fchildren8050386&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Mec%C3%ADas-Calvo&rft.aufirst=Marcos&rft.au=Mec%C3%ADas-Calvo%2C+Marcos&rft.volume=8&rft.title=Children&rft.issn=2227-9067&rft.date=Mayo+2021&rft.atitle=Is+It+Possible+to+Reduce+the+Relative+Age+Effect+through+an+Intervention+on+Motor+Competence+in+Preschool+Children%3F&rft.pages=386&rft.issue=5&rft.genre=article