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The upper and lower limb initially develops as a small bulge called a limb bud, which appears on the lateral side of the early embryo. The upper limb bud appears near the end of the fourth week of development, with the lower limb bud appearing shortly after.
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Development and Validation of a Methodology for Establishing Obese Rat Models with Typical Fatty Pancreas
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The ancestor's paunch

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    No abstract available in PubMed .

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