@article{BrueggmannKollascheckQuarcooetal.2017,
  author    = {D{\"o}rthe Br{\"u}ggmann and Jana Kollascheck and David Quarcoo and Michael Hans Karl Bendels and Doris Klingelh{\"o}fer and Frank Louwen and Jenny Jaque and Jan David Alexander Groneberg},
  title     = {Ectopic pregnancy : exploration of its global research architecture using density-equalising mapping and socioeconomic benchmarks},
  journal   = {BMJ open},
  volume    = {7},
  number    = {10, e018394},
  pages     = {1 -- 12},
  doi       = {10.1136/bmjopen-2017-018394},
  year      = {2017},
}