This survey is now closed and it is no longer possible to participate. Studies based on the survey will be published on the 'Results' page.

Information på svenska

Information till forskningspersonerna Pdf, 214.9 kB, opens in new window.

Instruktion om deltagande Pdf, 257.3 kB, opens in new window.

Information in English

Information for research participants Pdf, 216.6 kB, opens in new window.

Instructions on participation Pdf, 260.5 kB, opens in new window.

Click here to participate / Klicka här för att delta