Gao, Xing, and David Wayne Kelley. “Understanding How Distance to Facility and Quality of Care Affect Maternal Health Service Utilization in Kenya and Haiti: A Comparative Geographic Information System Study”. Geospatial Health 14, no. 1 (May 14, 2019). Accessed April 18, 2024. https://www.geospatialhealth.net/gh/article/view/690.