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人脑生长的关键期在妊娠中期至生后２年，小脑的发育较脑的其它部分晚，但发育较迅速，在生后１８个月时小脑发育已接近成人水平。为了探讨婴儿小脑发育的情况，我们采用头颅超声对一批婴儿在出生时和出生后１年内小脑的发育情况进行随访研究，并观察足月儿与早产儿小脑发育情?
The critical period of human brain growth in the second trimester of pregnancy to 2 years after birth, cerebellum development than other parts of the brain later, but the development is more rapid, 18 months after birth when the cerebellum is approaching adult levels. To investigate the development of infant cerebellum, we used a series of follow-up studies on the development of the cerebellum of a group of infants at birth and one year after birth, and observed the development of cerebellum in term infants and premature infants.