No abstract available
MeSH terms
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Adult
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Altruism
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Blood Donors / psychology*
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Blood Donors / supply & distribution
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Blood Platelets / cytology
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Blood Platelets / pathology*
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Fees and Charges
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Humans
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Middle Aged
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Motivation / physiology*
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Platelet Transfusion / economics*
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Platelet Transfusion / psychology
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Red Cross / organization & administration