Fig. 3
From: The effect of concentrating obstetrics services in fewer hospitals on patient access: a simulation
Access to academic hospital obstetrics departments or perinatal medical centers. Access to the nearest general or regional perinatal medical center or academic obstetrics hospital as of 2011. In each 1-km2 mesh, brown represents a driving time of ≤30 min, red a time of 30–60 min, orange a time of >60 min and gray represents non-residential and non-reported areas