Unverified90% confidenceDecision RuleTime unknown
认准械字号(二类医疗器械注册证)而非'消'字号或无证产品,多普勒仪属二类医疗器械,无医疗认证的设备胎心音识别可信度低且存在超声输出功率不达标风险
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Long-term
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