Original language | English |
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Pages (from-to) | 121-126 |
Number of pages | 6 |
Journal | American journal of epidemiology |
Volume | 150 |
Issue number | 2 |
DOIs |
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Publication status | Published - 1999 Jul 15 |
Bibliographical note
Funding Information:This article was supported by grants U48/CCU310821 and U48/CCU315779 from the Centers for Disease Control and Prevention.
ASJC Scopus subject areas
- General Medicine