@article{BauerBrueggmannOhlendorfetal.2016,
  author    = {Jan Bauer and D{\"o}rthe Br{\"u}ggmann and Daniela Maren Ohlendorf and Jan David Alexander Groneberg},
  title     = {General practitioners in German metropolitan areas - distribution patterns and their relationship with area level measures of the socioeconomic status},
  journal   = {BMC health services research},
  volume    = {16},
  number    = {(1):672},
  doi       = {10.1186/s12913-016-1921-5},
  year      = {2016},
}