@misc{indiciae97bdd65f93dd,
  title = {Microcomputer-assisted multivariate survival data analysis using Cox's proportional hazards regression model.},
  author = {N Campos-Filho and E L Franco},
  year = {1990},
  doi = {10.1016/0169-2607(90)90054-d},
  url = {https://pubmed.ncbi.nlm.nih.gov/2335079/},
  note = {Source identifier: 2335079}
}