@article{Gurven2007,
author = {Gurven, M. and Kaplan, H.},
title= {Longevity among hunter-gatherers: A cross-cultural examination},
year = {2007},
doi = {10.1111/j.1728-4457.2007.00171.x},
journal = {Population and Development Review},
volume = {33},
number = {2},
pages = {321--365},
}