1. Human Development and Health; Faculty of Medicine; University of Southampton; Southampton UK
2. Division of Epidemiology, Biostatistics and Environmental Health; School of Public Health; University of Memphis; Memphis TN USA
3. Department of Epidemiology and Biostatistics; Arnold School of Public Health; University of South Carolina; Columbia SC USA
4. Department of Pulmonology; GRIAC Research Institute; University of Groningen; University Medical Center Groningen; Groningen the Netherlands
5. Department of Genetics; GRIAC Research Institute; University of Groningen; University Medical Center Groningen; Groningen the Netherlands
6. The David Hide Asthma and Allergy Research Centre; Isle of Wight UK
7. Clinical and Experimental Sciences; Faculty of Medicine; University of Southampton; Southampton UK
8. Department of Large Animal Clinical Sciences; Michigan State University; East Lansing MI USA
9. Institute for Risk Assessment Sciences; Division of Environmental Epidemiology; Utrecht University; Utrecht the Netherlands
10. Department of Pulmonary Medicine and Tuberculosis; GRIAC Research Institute; University of Groningen; University Medical Center Groningen; Groningen the Netherlands
11. Department of Pediatric Pulmonology and Pediatric Allergology; Beatrix Children's Hospital; GRIAC Research Institute; University of Groningen; University Medical Center Groningen; Groningen the Netherlands