Some different types of essential hypertension: their course and prognosis.
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Adolescent↗
Biomedical subjects
N W Barker
Publications and source records attributed to N W Barker.
The natural history of a heroin epidemic.
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Black or African American↗
Developing an epidemiologic field team for drug dependence.
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Black or African American↗
The social structure of a heroin copping community.
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Age Factors↗