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Resumo

The skeletal maturation of Japanese‐American White hybrids is discussed in relation to that of Japanese and Whites. Assessment of skeletal maturation was made on 323 radiographs of 57 boys and 151 of 33 girls studied semi‐longitudinally from 3 to 18 years on the basis of the Tanner‐Whitehouse method (62). The skeletal maturity scores show a tendency for a greater advance in childhood for the Whites than for the hybrids and the Japanese. However, the preadolescent spurt of skeletal maturity occurs earlier in the Japanese and the hybrids than in the Whites, and the hybrids show the intermediate skeletal maturity scores between those of the Japanese and the Whites at and after adolescence.

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