The Normal Fetal Cephalic Index in the Second and Third Trimesters of PregnancySarah Constantine,Andreas Kiermeier,Peter AndersonULTRASOUND QUARTERLY(2020)引用 3|浏览13关键词pregnancy,fetus,skull,biometry,ultrasonographyAI 理解论文溯源树样例生成溯源树,研究论文发展脉络Chat Paper正在生成论文摘要