@article{Bowling2008,
author = {Bowling, A. and Windsor, J.},
title= {The effects of question order and response-choice on self-rated health status in the English Longitudinal Study of Ageing (ELSA)},
year = {2008},
doi = {10.1136/jech.2006.058214},
volume = {62},
pages = {81--85},
}