臀位脐带脱垂的临床特点及防治——附19例病例分析及文献复习
둔위제대탈수적림상특점급방치——부19례병례분석급문헌복습
The breech delivery umbilical cord escapes the clinical characteristic and preventingand controlling which hangs (to attach 19 example cases of illness to analyze)
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