@misc{indiciaebb552419f85c,
  title = {Assessing gamma frailty models for clustered failure time data.},
  author = {J H Shih and T A Louis},
  year = {1995},
  doi = {10.1007/bf00985771},
  url = {https://pubmed.ncbi.nlm.nih.gov/9385102/},
  note = {Source identifier: 9385102}
}