While the exact cause of autism spectrum disorders are currently unknown, there are many possibilities.
尽管孤独症谱系障碍的确切成因目前还不清楚,但是可能性有很多。
Low birth weight tended to be more often linked to autism spectrum disorders in boys than girls (9.9 percent versus 3.3 percent).
低体重新生儿与自闭症之类的疾病的联系程度,男孩比女孩更高(9.9%对3.3%)。
Kim said children in regular American classrooms should be included in future studies to get a better measure of the incidence of autism spectrum disorders.
金说,美国课堂上的孩子们应该被包括在未来的研究中,以更好地评估自闭症谱系障碍发生率。
Autism is a set of disorders, along a wide spectrum, that affects a person's ability to respond socially or form relationships.
VOA: standard.2010.08.09
Older mothers are known to face increased risks for having children with genetic disorders, and genes are thought to play a role in the entire autism spectrum.
VOA: standard.2010.02.10
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