@misc{indiciae457c6ee5131d,
  title = {REML and ML estimation for clustered grouped survival data.},
  author = {K F Lam and David Ip},
  year = {2003},
  doi = {10.1002/sim.1323},
  url = {https://pubmed.ncbi.nlm.nih.gov/12802820/},
  note = {Source identifier: 12802820}
}