Kowal Paul, Afshar Sara
Study on global ageing and adult health, WHO, Geneva, Switzerland; Priority Research Centre for Gender, Health, and Ageing, University of Newcastle, Newcastle, Australia.
Academic Unit of Primary Care and Population Sciences, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK.
Lancet. 2015 Jan 31;385(9966):415-6. doi: 10.1016/S0140-6736(15)60147-7.