1.
Classification of post COVID-19 condition symptoms: a longitudinal study in the Belgian population
2.
3.
4.
Validity of self-reported mammography uptake in the Belgian health interview survey: selection and reporting bias
Methodological basics and evolution of the Belgian health interview survey 1997–2008
Is the different time trend (1997–2008) of the obesity prevalence among adults in the three Belgian regions associated with lifestyle changes?
Post COVID-19 condition and health-related quality of life: a longitudinal cohort study in the Belgian adult population
Fat-soluble vitamin intake from the consumption of food, fortified food and supplements: design and methods of the Belgian VITADEK study
The Belgian health examination survey: objectives, design and methods
Post COVID-19 condition and its physical, mental and social implications: protocol of a 2-year longitudinal cohort study in the Belgian adult population
Time trends in the use of field-substitution in the Belgian health interview survey
Data collection in pandemic times: the case of the Belgian COVID-19 health surveys