1. Department of Epidemiology, Columbia University Mailman School of Public Health, New York, New York, USA
2. Spatial Analysis Laboratory, University of Vermont, Burlington, Vermont, USA
3. Division of Forestry, Horticulture and Natural Resources, New York City Department of Parks and Recreation, New York, New York, USA
4. Institute for Social and Economic Research and Policy, Columbia University, New York, New York, USA
5. Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, New York, USA
6. New York City Department of Health and Mental Hygiene, New York, New York, USA