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167 Sonographic Screening for Trisomy 21: Fetal Humerus:Foot Length Ratio, a Useful New Marker

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Fetal leg and femur/foot length ratio: A

✍ Johnson, Mark Paul; Barr, Mason; Treadwell, Marjorie C.; Michaelson, Jefferey; I 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 899 KB