Louiza Kalokairinou1, Heidi Carmen Howard2, Pascal Borry3. 1. Department of Public Health and Primary Care, University of Leuven, B-3000 Leuven, Belgium. 2. Center for Research Ethics and Bioethics, Uppsala University, SE-751 22 Uppsala, Sweden. 3. Department of Public Health and Primary Care, University of Leuven, B-3000 Leuven, Belgium. pascal.borry@med.kuleuven.be.