1. The ageing male: demographics and challenges
2. National Research C. Preparing for an aging world: The case for cross-national research. 1st Edition National Academies Press:Washington, 2001
3. Adib-Hajbaghery M, Akbari H. The severity of old age disability and its related factors. Journal of Kashan University of Medical Sciences (FEYZ) 2009; 13:225-34[Persian]
4. Sahebalzamani M, Koosha S, Heydari MB, Farshid P, Esmaili I. The study of participating factors of age-related cataract among patients referred to ophthalmology centers under supervision of Tehran University of medical sciences. Medical Science Journal of Islamic Azad Univesity-Tehran Medical Branch 2011; 20:273-7[Persian]
5. Saleh Abadi R, Mohammadi Shahboulaghi F, Vejdani M, Fallahi Khoshknab M, Delbari A. The impact of relaxation using guided imagery techniques on the physiological changes associated with anxiety in the elderly undergoing cataract surgery. Journal of Sabzevar University of Medical Sciences 2018; 24:29-35[Persian]