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. 2019 Oct 23;16(21):4055. doi: 10.3390/ijerph16214055

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© 2019 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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The prevalence of RAE in junior and youth Russia national football teams (A), in the leading clubs of the Russian Premier League (B), in youth teams of leading non-English clubs participating in the Union of European Football Associations (UEFA) Youth League championships (C), in youth teams of leading English clubs participating in the UEFA Youth League championships of 2018–2019 (D), in the leading Russian adult football teams (E), and in the top 11 countries according to International Federation of Association Football (FIFA) rating as of 6 April 2019, as well as the Germany national team (2014 World champion) and the Russia national team (World championship host) (F).