@article{hoyert2012-24984457,
  author  = {Hoyert, D. L. and Xu, J.},
  title   = {{Deaths: preliminary data for 2011}},
  journal = {National vital statistics reports : from the Centers for Disease Control and Prevention, National Center for Health Statistics, National Vital Statistics System},
  year    = {2012},
  pmid    = {24984457}
}