Association between polypharmacy and mortality in the community-dwelling older population: a data linkage study, Van der Heyden, Johan, Berete Finaba, Devleesschauwer Brecht, De Ridder Karin, Bruyère Olivier, Renard Françoise, and Charafeddine Rana , International Journal of Epidemiology, Feb-09-2021, Volume 50, Issue Supplement_1, (2021)