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. 2017 Mar 8;16:21. doi: 10.1186/s12940-017-0226-4

Fig. 1.

Fig. 1

Distribution of residential distance to A1 or A2 roads in the Jackson Heart Study in cutpoints of 500 m (N = 4826). Inset: distribution of residential distance to A1 or A2 roads among those who lived within 1000 m of A1 or A2 roads in cutpoints of 50 m (n = 1417)