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Your query returned 5 studies. Series results are grouped under the most relevant study. Ungroup series results to view all results.

3.
National Camping Market Survey, 1978 (ICPSR 7800)
United States Department of Agriculture. Forest Service
4.
Population Assessment of Tobacco and Health (PATH) Study [United States] Public-Use Files (ICPSR 36498)
United States Department of Health and Human Services. National Institutes of Health. National Institute on Drug Abuse; United States Department of Health and Human Services. Food and Drug Administration. Center for Tobacco Products

more results 1 more result in Population Assessment of Tobacco and Health (PATH) Series

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