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Fig. 3 | BMC Research Notes

Fig. 3

From: Measuring health-relevant businesses over 21 years: refining the National Establishment Time-Series (NETS), a dynamic longitudinal data set

Fig. 3

Total number of vigorous physical activity facilities in NY–NJ–PA CBSA 23 counties, for the years 1990–2010, and the effect of treatment of business categorization and potentially duplicative businesses. Overall category assignment, yearly category assignment, overall category assignment, after collapsing potentially duplicative businesses

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