@article{Sugisawa1994,
author = {Sugisawa, H. and Liang, J. and Liu, X.},
title= {Social networks, social support, and mortality among older people in Japan},
year = {1994},
doi = {10.1093/geronj/49.1.S3},
journal = {J Gerontol},
volume = {49},
number = {1},
pages = {S3−S13},
}