TY  - RPRT
TI  - Generalized gamma frailty model.
AU  - N Balakrishnan
AU  - Yingwei Peng
PY  - 2006
DO  - 10.1002/sim.2375
UR  - https://pubmed.ncbi.nlm.nih.gov/16220516/
ID  - 16220516
ER  -