1. I-BioStat, Universiteit Hasselt, Agoralaan Gebouw D, Diepenbeek, Belgium
2. Center for Public Health Research, Kenya Medical Research Institute, Nairobi, Kenya
3. L-BioStat, Katholieke Universiteit (KU) Leuven, Leuven, Belgium
4. Non-communicable Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, UK
5. Statistics and Actuarial Sciences, Jomo Kenyatta University of Agriculture & Technology, Nairobi, Kenya