David J Vinkers, Jacobijn Gussekloo, Max L Stek, Rudi G J Westendorp, Roos C van der Mast
Vinkers D J, Gussekloo J, Stek M L, Westendorp R G J, Mast R C v d.
Temporal relation between depression and cognitive impairment in old age: prospective population based study
BMJ 2004; 329 :881
doi:10.1136/bmj.38216.604664.DE