@article{Davies2011,
author = {Davies, A.A. and Borland, R.M. and Blake, C. and West, H.E. },
title= {The dynamics of health and return migration},
year = {2011},
doi = {10.1371/journal.pmed.1001046},
journal = {PLoS Medicine },
volume = {8},
number = {6},
pages = {e1001046},
}