Article
Genes and environment in asthma: a study of 4 year old twins
1 Nov 2001
Abstract excerpt
BACKGROUND: Although the genetic and environmental factors of asthma have been investigated in adolescence and adulthood, no previous studies have focused on the early development of asthma. AIMS: To test, in a large sample of 4 year old twins, the hypotheses derived from the literature on adolescents and adults that genetic influences are substantial and shared environmental influences are modest. METHODS: The...
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