@article{MacheGroneberg2009,
  author    = {Stefanie Mache and Jan David Alexander Groneberg},
  title     = {Medical work assessment in German hospitals : a real-time observation study (MAGRO) ; the study protocol},
  journal   = {Journal of occupational medicine and toxicology},
  volume    = {4},
  number    = {12},
  doi       = {10.1186/1745-6673-4-12},
  year      = {2009},
}