@misc{indiciae431364299802,
  title = {Proportional hazards model with random effects.},
  author = {F Vaida and R Xu},
  year = {2000},
  doi = {10.1002/1097-0258(20001230)19:24<3309::aid-sim825>3.0.co;2-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/11122497/},
  note = {Source identifier: 11122497}
}