@inbook{Thatcher1997,
author = {Thatcher, A.R.},
title= {Trends and prospects at very high ages},
year = {1997},
editor = {Charlton, J.},
editor = {Murphy, M.},
booktitle = {The health of adult Britain 1841-1994},
address = {London},
publisher = {The Stationery Office},
series = {Volumes 1 and 2},
}