Correspondence (letter to the editor): To be interpreted with caution.

@article{Hofmeister2012CorrespondenceT,
  title={Correspondence (letter to the editor): To be interpreted with caution.},
  author={Martin Hofmeister},
  journal={Deutsches Arzteblatt international},
  year={2012},
  volume={109 42},
  pages={712; author reply 712-3}
}