1. University of California San Francisco Department of Medicine, 166668, Division of Occupational, Environmental, and Climate Medicine, San Francisco, California, United States;
2. University of Calgary Cumming School of Medicine, 70401, Medicine, Calgary, Alberta, Canada
3. University of California Los Angeles, 8783, Department of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, Los Angeles, California, United States
4. University of Calgary Cumming School of Medicine, 70401, Calgary, Alberta, Canada
5. University of California Berkeley School of Public Health, 40289, Division of Epidemiology, Berkeley, California, United States
6. Imperial College School of Medicine, London, United Kingdom of Great Britain and Northern Ireland
7. California Department of Public Health, Richmond, California, United States