Ljung, R., Sundström, A., Grünewald, M., Backman, C., Feltelius, N., Gedeborg, R. and Zethelius, B. (2021) “The profile of the COvid-19 VACcination register SAFEty study in Sweden (CoVacSafe-SE)”, Upsala Journal of Medical Sciences, 126(1). doi: 10.48101/ujms.v126.8136.