Funding {4}
The TTVguideIT study is 100% funded by a European Commission Horizon 2020 Research and Innovation Action (project number: 896932; project name: TTVguideTX; project coordinator: Gregor Bond). The European Commission has no role in the design of the study, collection, analysis and interpretation of data and writing of the manuscript.First protocol approval (version 5.0): Austria, 01.07.2022; the Czech Republic, 01.07.2022; France, 28.06.2022; Germany, 01.07.2022; The Netherlands, 30.06.2022; Spain, 08.07.2022.First protocol amendment (version 6.0): Austria, 12.10.2022; the Czech Republic, 17.10.2022; France, 14.10.2022; Germany, 13.10.022; the Netherlands, 17.10.2022; Spain, 13.10.2022.