@misc{indiciaebd27f8d279af,
  title = {[Proceedings: Interaction analysis at a dialysis unit].},
  author = {P Vollrath and H Ferner and H Wertzel and E Ritz},
  year = {1975},
  url = {https://pubmed.ncbi.nlm.nih.gov/805974/},
  note = {Source identifier: 805974}
}