@inbook{Crimmins2011,
author = {Crimmins, E.M. and Preston, S.H. and Cohen, B.},
title= {Introduction and overview},
year = {2011},
editor = {Crimmins, E.M.},
editor = {Preston, S.H.},
editor = {Cohen, B.},
booktitle = {International Differences in Mortality at Older Ages: Dimensions and Source},
address = {Washington, D.C},
publisher = {The National Academies Press},
pages = {1--13},
}