@misc{indiciae01f83106e90d,
  title = {The Zebra system--a new patient classification system.},
  author = {A K Levenstam and I B Engberg},
  year = {1993},
  doi = {10.1111/j.1365-2834.1993.tb00218.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/8313064/},
  note = {Source identifier: 8313064}
}