1. Ageing populations: the challenges ahead;Christensen;Lancet,2009
2. Disease burden of cardiovascular disease in the elderly;Kelly;Coron Artery Dis,1997
3. Aging Americans and diabetes. A public health and clinical response;Jack;Geriatrics,2004
4. From quackery to “complementary” medicine: the American medical profession confronts alternative therapies;Winnick;Social Problems,2005
5. Integrative healthcare: arriving at a working definition;Boon;Altern Ther Health Med,2004