The WHO perspective on active ageing.
Kalache
A
A
Ageing and Health Programme, WHO, Geneva, Switzerland. kalachea@who.int
Keller
I
I
D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000502:physiology*; D015444:Exercise; D005260:Female; D006801:Humans; D008019:Life Style; D008297:Male; D010809:Physical Fitness; D014944:World Health Organization