@article{wi-young so2017differences,
  title={GENDER DIFFERENCES IN BODY COMPOSITION, PHYSICAL ACTIVITY LEVEL, PHYSICAL FITNESS, AND BONE MINERAL DENSITY AMONG ELDERLY INDIVIDUALS LIVING ALONE COMPARED TO THOSE LIVING WITH THEIR SPOUSES},
  author={sunga kong,wi-young so},
  journal={Journal of Men's Health},
  volume={13},
  number={2},
  pages={60--67},
  doi = {10.22374/1875-6859.13.2.8},
  year={2017}
}