Cohort profile: The ENTWINE iCohort study, a multinational longitudinal web-based study of informal care - Saif Elayan; Eva Bei; Giulia Ferraris; Oliver Fisher; Mikołaj Zarzycki; Viola Angelini; Lena Ansmann; Erik Buskens; Mariët Hagedoorn; Milena von Kutzleben; Giovanni Lamura; Anne Looijmans; et al. (PLoS ONE, 2024)