@article{BrueggmannAlafiJaqueetal.2018,
  author    = {D{\"o}rthe Br{\"u}ggmann and Annahita Alafi and Jenny Jaque and Doris Klingelh{\"o}fer and Michael Hans Karl Bendels and Daniela Maren Ohlendorf and David Quarcoo and Frank Louwen and Sue A. Ingles and Eileen M. Wanke and Jan David Alexander Groneberg},
  title     = {World-wide research architecture of vitamin D research : density-equalizing mapping studies and socio-economic analysis},
  journal   = {Nutrition journal},
  volume    = {17},
  number    = {1, Art. 3},
  pages     = {1 -- 12},
  doi       = {10.1186/s12937-018-0313-6},
  year      = {2018},
}