@article{Prince1999,
author = {Prince, M.J. and Beekman, A.T. and Deeg, D.J. and Fuhrer, R. and Kivela, S.L. and Lawlor, B.A. and Reischies, F.},
title= {Depression symptoms in late life assessed using the EURO–D scale},
year = {1999},
doi = {10.1192/bjp.174.4.339},
volume = {174},
number = {4},
pages = {339--345},
}