Numbers and medians of estimated travel durations (hours), distances (km), and expenditures (U.S. dollars) for car travel.

Dist, Distances; Dur, Durations; Exp, Expenditures; n, number of patients. Expenditures are the sum of toll charges for a standard-sized car in U.S. dollars. All analyses used the durations, distances, and expenditures for the route with the shortest travel time among the routes to access each treatment hospital for each case, unless otherwise indicated. aThis analysis used durations, distances, and expenditures to access each treatment hospital. (XLSX)