Swertz M, van Enckevort E, Oliveira JL, Fortier I, Bergeron J, Thurin NH, Hyde E, Kellmann A, Pajouheshnia R, Sturkenboom M, Cunnington M, Nybo Andersen A-M, Marcon Y, Goncalves G, Gini R. Towards an interoperable ecosystem of research cohort and real-world data catalogues enabling multi-center studies. Yearb Med Inform. 2022 Aug;31(1):262-72. doi: 10.1055/s-0042-1742522
Raghunathan K, Layton JB, Ohnuma T, Shaw AD. Observational research using propensity scores. Adv Chronic Kidney Dis. 2016 Nov;23(6):367-72. doi: 10.1053/j.ackd.2016.11.010