@misc{indiciae79376fbb0d2b,
  title = {Balancing on the edge.},
  author = {Gerd Laifer and Walter Marti and Walter Wiesner and Ursula Fluckiger},
  year = {2002},
  doi = {10.1016/s0140-6736(02)11684-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/12480429/},
  note = {Source identifier: 12480429}
}