1. DE Bloom, A Börsch-Supan, P McGee. Population ageing: macro challenges and policy responses. JR Beard, S Biggs, DE Bloom. Global Population Ageing: Peril or Promise? 2012; World Economic Forum: Geneva, 35–38.
2. World Health Organization. Good life adds health to years: Global brief for World Health Day 2012. 2012; WHO: Geneva.
3. HelpAge International United Nations Population Fund. Ageing in the 21st Century. A celebration and a challenge. 2012; HelpAge International: London.
4. World Economic Forum. Global population ageing: peril or promise. 2012; WEF: Geneva.
5. Sexual health in older women