@article{McGue1993,
author = {McGue, M. and Vaupel, J.W. and Holm, N. and Harvald, B.},
title= {Longevity is moderately heritable in a sample of Danish twins born 1870-1880},
year = {1993},
journal = {Journals of Gerontology: Series A - Biological Sciences and Medical Sciences},
volume = {48},
number = {6},
pages = {B237--B244},
}