[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

婴儿颈椎生理弯曲通常在3-6个月抬头稳定后开始形成,此时可考虑高度1-2cm的极薄定型枕;1岁后颈曲逐渐明显,枕高可增至3-4cm

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