TY  - RPRT
TI  - Proportional hazards model with random effects.
AU  - F Vaida
AU  - R Xu
PY  - 2000
DO  - 10.1002/1097-0258(20001230)19:24<3309::aid-sim825>3.0.co;2-9
UR  - https://pubmed.ncbi.nlm.nih.gov/11122497/
ID  - 11122497
ER  -