[KongchangAI]
Unverified90% confidenceDecision RuleTime unknown

口腔棉签采样的DNA降解风险高于血液,采样前需禁食禁水30分钟以上,且棉签需在两颊内侧充分刮擦20-30秒才能获得足量口腔上皮细胞

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90%
Confidence
Long-term
Relevance
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