No abstract available
Publication types
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Editorial
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Historical Article
MeSH terms
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Constriction
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History, 18th Century
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History, 20th Century
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History, 21st Century
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Humans
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Infant, Newborn
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Infant, Premature / blood*
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Perinatology / history*
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Time Factors
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Umbilical Cord / blood supply*
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World Health Organization