Unverified70% confidenceDecision RuleTime unknown
凹槽深度需匹配月龄:0-3月凹槽深度约1-2cm,4-6月约2-3cm,过深会限制头部活动反而增加风险,凹槽宽度应大于宝宝后脑宽度2cm以上避免夹头
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