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Abraldes Valerias JA, Argudo Iturriaga FM. Utilización del recreo escolar por niños de 4º y 6º de Primaria (Use of break by children of 4th and 6th year of primary education). Retos [Internet]. 2008 Jul. 1 [cited 2025 Sep. 22];14:88-91. Available from: http://207.180.252.49/index.php/retos/article/view/35019