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请不要让3个月以前的婴儿俯卧位睡眠。虽然近年来西方一些学者认为俯卧有利于婴儿肺活量的增加,但任何一个国家都有因采用这种体位入睡的婴儿
Please do not let baby 3 months ago prone to sleep. Although in recent years some Western scholars believe that lying prone to increase the capacity of infants, but any country as a result of this posture to sleep in infants