@article{Zuo2018,
author = {Zuo, Wenyun and Jiang, Sha and Guo, Zhen and Feldman, Marcus W. and Tuljapurkar, Shripad},
title= {Advancing front of old-age human survival},
year = {2018},
doi = {10.1073/pnas.1812337115},
volume = {115},
number = {44},
pages = {11209--11214},
}