经阴道超声检测子宫内膜及阻力指数联合血β-HCG在早期诊断宫内外孕中的临床价值
경음도초성검측자궁내막급조력지수연합혈β-HCG재조기진단궁내외잉중적림상개치
Diagnostic value of testing the thickness and blood flow of uterine endometrium,β-HCG of early intrauterine pregnancy and early ectopic pregnancy
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