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1BogUdgivet 1998“...National Center for Health Statistics (U.S.)...”
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2BogUdgivet 1968“...National Center for Health Statistics (U.S.)...”
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3BogUdgivet 1993“...National Center for Health Statistics (U.S.)...”
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4Government Document BogUdgivet 1981“...National Center for Health Statistics (U.S.)...”
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5
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6Bogaf Heuser, Robert L.“...National Center for Health Statistics (U.S.). Division of Vital Statistics...”
Udgivet 1976
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7Government Document SerialUdgivet 1976“...National Center for Health Statistics (U.S.)...”
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8BogUdgivet 1984“...National Center for Health Statistics (U.S.)...”
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9SerialUdgivet 1962“...National Center for Health Statistics (U.S.)...”