@article{Vink2009,
author = {Vink, D. and et al.},
title= {Onset of anxiety and depression in the aging population: comparison of risk factors in a 9-year prospective study},
year = {2009},
doi = {10.1097/JGP.0b013e3181a65228},
journal = {American Journal of Geriatric Psychiatry},
volume = {17},
number = {8},
pages = {642--652},
}