Unverified50% confidenceDecision RuleTime unknown
新生儿（0-4月）颈椎未发育完全，必须选择带独立头颈支撑（M型腿包裹+头部护托）的结构，且宝宝面部与照护者胸口需保持一拳距离，避免口鼻贴合造成窒息
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