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. 2020 Sep 14;19:36. doi: 10.1186/s12942-020-00229-x

Fig. 2.

Fig. 2

Datasets of hospitals, population, COVID-19 cases in Chicago, Illinois: a spatial distributions of ICU beds and population at risk, and b spatial distributions of ventilators and confirmed COVID-19 cases. To avoid the edge effects, we included hospitals located within 15 miles from the Chicago boundary. 15 miles are considered based on estimated average travel time of about 30 min [24]