@article{Sirola2007,
  author    = {Kari Sirola},
  title     = {Regeneration of defects in the calvaria : an experimental study},
  journal   = {Annales medicinae experimentalis et biologiae Fenniae},
  volume    = {38},
  number    = {Suppl. 2},
  pages     = {4 -- 87},
  year      = {2007},
}