A J M de Craen, J Gussekloo, Y K O Teng, P W Macfarlane, R G J Westendorp
de Craen A J M, Gussekloo J, Teng Y K O, Macfarlane P W, Westendorp R G J.
Prevalence of five common clinical abnormalities in very elderly people: population based cross sectional study
BMJ 2003; 327 :131
doi:10.1136/bmj.327.7407.131