屏气发作(breathholdingspell)
屏气发作为呼吸运动暂停的一种异常性格行为问题,多发于6~18个月婴幼儿,5岁前会逐渐自然消失。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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