@article{RahimWoestefeldKronsteinerElSayedetal.2021,
  author    = {Sonja Rahim-W{\"o}stefeld and Dorothea Kronsteiner and Shirin El-Sayed and Nihad el Sayed and Peter Eickholz and Bernadette Pretzl},
  title     = {Development of a prognostic tool: based on risk factors for tooth loss after active periodontal therapy},
  journal   = {Clinical oral investigations},
  volume    = {2021},
  number    = {online version before inclusion in an issue},
  doi       = {10.1007/s00784-021-04060-x},
  year      = {2021},
}