Association of air pollution with outpatient visits for respiratory diseases of children in an ex-heavily polluted Northwestern city China

摘要

Spatial distribution of air quality monitoring stations, studied hospitals, and four central urban districts in Lanzhou, China. Source: The map was created by the authors with ArcGIS 10.2.2 software (ESRI, Redlands, California, USA). ArcGIS is the intellectual property of ESRI and is used by license in here