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Maternal physical activity affects yolk sac size and growth in early pregnancy, but girls and boys use different strategies | Scientific Reports
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Pilot study establishing a nomogram of yolk sac growth during the first trimester of pregnancy - Detti - 2020 - Journal of Obstetrics and Gynaecology Research - Wiley Online Library
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A) Ultrasound and hysteroscopic images of the yolk sac in a partial... | Download Scientific Diagram
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