Autism is up to four times more common in boys, and is thought to be caused by high levels of testosterone in the womb.
Autism is up to four times more common in boys, and is thought to be caused by high levels of testosterone in the womb.
男孩孤独症发生的比率要高出4倍，而且被认为是由于在胎儿期睾丸激素水平过高所引起。