Douglas M. More, Developmental Concordance and Discordance during Puberty and Early Adolescence, Monographs of the Society for Research in Child Development, Vol. 18, No. 1, Developmental Concordance and Discordance during Puberty and Early Adolescence (1953), pp. i-iii+v+vii+1-125+127-128
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Douglas M. More (1953) studied this question.
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