TY  - RPRT
TI  - frailtypack: a computer program for the analysis of correlated failure time data using penalized likelihood estimation.
AU  - Virginie Rondeau
AU  - Juan R Gonzalez
PY  - 2005
DO  - 10.1016/j.cmpb.2005.06.010
UR  - https://pubmed.ncbi.nlm.nih.gov/16144730/
ID  - 16144730
ER  -