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. 2015 May;25(5):366–376. doi: 10.1016/j.annepidem.2014.03.004

Fig. 3.

Fig. 3

Accumulation of MH records in National Instant Check System.

Sources: (1) Federal Bureau of Investigation. National Instant Criminal Background Check System (NICS) operations 2012; 2013; http://www.fbi.gov/about-us/cjis/nics/reports/2012-operations-report; (2) Federal Bureau of Investigation (FBI). Active Records in the NICS Index. 2013; http://www.fbi.gov/about-us/cjis/nics/reports/active-records-in-the-nics-index-113013.pdf