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Genetic and Environmental Influences on Finger-Sucking and Nail-Biting in Japanese Twin Children

2005-08-01

Abstract excerpt

Abstract The purpose of this study was to clarify the genetic contribution to finger-sucking and nail- biting in childhood using the largest databases available on Japanese twins. The subjects were 1131 pairs of 12-year-old twin children, consisting of 1057 males and 1205 females. All data were gathered by maternal questionnaire, and responses to the questionnaire were checked in the medical interview. The prevale...

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Literature Corpus work
e2343a8a-9cee-5de5-9fcf-bac5e045a8eb
DOI
10.1375/twin.8.4.320
Open publication

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