@article{JannLaegreidVerhoest2007,
  author    = {Jann, Werner and Laegreid, Per and Verhoest, Koen},
  title     = {Introduction},
  issn      = {0020-8523},
  doi       = {10.1177/0020852307081143},
  year      = {2007},
  language  = {en}
}