Centre for Environment and Health (Ms Lambrechts, Dr Godderis), KU Leuven, University of Leuven; Association for Alcohol and Other Drug Problems (Ms Lambrechts), VAD, Brussels; Department of General Practice/Family Medicine (Dr Ketterer, Dr Vanmeerbeek), University of Liege; Department of Primary and Interdisciplinary Care (Ms Symons, Dr Peremans, Dr Remmen), University of Antwerp, Wilrijk; Department of Public Health Sciences (Dr Mairiaux), University of Liege; Department of Public Health (Dr Peremans), Vrije Universiteit Brussel, Brussels; Department of Nursing and Midwifery (Dr Peremans), University of Antwerp, Wilrijk; and IDEWE (Dr Godderis), External Service for Prevention and Protection at Work, Heverlee, Belgium.
Address correspondence to: Marie-Claire Lambrechts, MSc, Centre for Environment and Health, Department of Public Health and Primary Care, KU Leuven, Kapucijnenvoer 35/5, Blok D, Box 7001, Leuven 3000, Belgium ([email protected]).
This work could be realized with the financial support of The Belgian Science Policy Office (Belspo); the Federal Public Service Health, Food Chain Safety and Environment and the Federal Public Service Employment, Labour and Social Dialogue (Contract DR/00/60).
Ethical approval: The Ethics committees of the Universities of Liege and Leuven gave their approval (Belgian No., respectively, B707201214939 and B322201317373).
The authors report no conflicts of interest.
