@article{Young2006,
author = {Young, A.F. and Powers, J.R. and Bell, S.L.},
title= {Attrition in longitudinal studies: Who do you lose?},
year = {2006},
doi = {10.1111/j.1467-842X.2006.tb00849.x},
journal = {Australian and New Zealand Journal of Public Health},
volume = {30},
number = {4},
pages = {353--361},
}