@article{Beckett2001,
author = {Beckett, M. and Da Vanzo, J. and Sastry, N. and Panis, C. and Peterson, C.},
title= {The quality of retrospective data: An examination of long-term recall in a developing country},
year = {2001},
doi = {10.2307/3069631},
volume = {36},
number = {3},
pages = {593--625},
}