1. International Center for Indoor Environment and Energy, Technical University of Denmark, Lyngby, Denmark
2. Environmental and Occupational Health Sciences Institute, University of Medicine and Dentistry of New Jersey and Rutgers University, Piscataway, New Jersey, USA
3. National Institute for Occupational Safety and Health, Morgantown, West Virginia, USA
4. Environmental Resources Engineering, Humboldt State University, Arcata, California, USA
5. Department of Civil Engineering, University of Texas–Austin, Austin, Texas, USA