1. Department of Public Health Sciences, Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA
2. Geisinger Center for Health Research, Danville, Pennsylvania, USA
3. Wuhan Academy of Environmental Science, Wuhan, China
4. Mount Sinai School of Medicine, New York, NY, USA
5. Wuhan Environmental Monitoring Center, Wuhan, China
6. Wuhan Centres for Disease Prevention and Control, Wuhan, China