Unverified80% confidenceTradeoffTime unknown
灵敏度越高(如10mIU/ml)越能早测出,但也越容易受生化妊娠影响出现'假阳性后又消失',造成心理落差;心理承受力较弱者用25mIU/ml延后测更稳妥
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80%
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Long-term
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