1. European ComissionEurope's population is getting older. How will this affect us and what should we do about it?20052015-08-18Europe's population is getting older. How will this affect us and what should we do about it?http://europa.eu/rapid/press-release_IP-05-322_en.pdf
2. The 2009 aging report2015-08-18European Commision, 2009http://ec.europa.eu/economy_finance/publications/publication14992_en.pdf
3. EULAR recommendations for the non-pharmacological core management of hip and knee osteoarthritis
4. OARSI recommendations for the management of hip and knee osteoarthritis
5. Physical activity levels among the general US adult population and in adults with and without arthritis