1. Environmental Department [Milieudienst], University Hospital, Gent University, Gent, Belgium
2. Department of Public Health and Primary Care, Faculty of Medicine and Health Sciences, Gent University, Gent University Hospital, Gent, Belgium
3. Clinical Chemistry Laboratory, Gent University Hospital, Gent University, Gent, Belgium
4. Leuven University, Department of Public Health and Primary Care, Faculty of Medicine, University Hospital Leuven, Gasthuisberg Campus, Leuven, Belgium
5. Central Administration, Secretariat of the Board of Governors, Faculty of Medicine and Health Sciences, University Hospital, Gent University, Gent, Belgium
6. Safety Department [Preventiedienst], University Hospital, Gent University, Gent, Belgium