No abstract available
MeSH terms
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Adolescent
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Adult
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Age Distribution
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Aged
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Blood Banking / methods*
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Blood Donors / supply & distribution*
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Blood Group Antigens
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Fatigue / prevention & control
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Female
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Hemoglobins / analysis
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Humans
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Male
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Middle Aged
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Sex Factors
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Syncope, Vasovagal / prevention & control
Substances
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Blood Group Antigens
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Hemoglobins