1. Programme Department, Stichting Disability Studies in Nederland, p/a Marelaan 61, 3454 GB De Meern, The Netherlands
2. Technical Department, NLR, Wibautstraat 137K, 1097 DN Amsterdam, The Netherlands
3. Department of Public Health, Erasmus Medical Center, University Medical Center Rotterdam, Doctor Molewaterplein 40, 3015 GD Rotterdam, The Netherlands
4. Department of Public Health, Debre Markos University, A3, Debre Markos, Ethiopia
5. Amsterdam University Medical Centre, VU Medical Center, De Boelelaan 1117-1118, 1081 HV Amsterdam, The Netherlands