1. A direct observation method for auditing large urban centers using stratified sampling, mobile GIS technology and virtual environments. Issue 1 (December 2017) Authors: Lafontaine, Sean; Sawada, M.; Kristjansson, Elizabeth Journal: International journal of health geographics Issue: Volume 16:Issue 1(2017) Page Start: 1 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗