1. United nations – world population ageing;UN,2020
2. OECD health statistics;OECD,2021
3. Social disparities in the prevalence of multimorbidity - a register-based population study: a register-based population study;Schiøtz;B M C Public Health,2017
4. The increasing burden and complexity of multimorbidity;Pefoyo;BMC Public Health,2015
5. Time trends in prevalence of chronic diseases and multimorbidity not only due to aging: Data from general practices and health surveys;Oostrom;Nederlands Tijdschrift Voor Geneeskunde,2017