TY  - RPRT
TI  - Frailty models and rank tests.
AU  - D Oakes
AU  - J H Jeong
PY  - 1998
DO  - 10.1023/a:1009689630516
UR  - https://pubmed.ncbi.nlm.nih.gov/9787603/
ID  - 9787603
ER  -