1. Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
2. Department of Environmental & Occupational Health Sciences, School of Public Health, University of Washington, Seattle, Washington, USA
3. Harvard–Smithsonian Center for Astrophysics, Cambridge, Massachusetts, USA
4. State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing, China
5. State Key Laboratory of Pollution Control and Resource Reuse and School of the Environment, Nanjing University, Nanjing, Jiangsu Province, China