TY  - RPRT
TI  - SAS and SPLUS programs to perform Cox regression without convergence problems.
AU  - Georg Heinze
AU  - Meinhard Ploner
PY  - 2002
DO  - 10.1016/s0169-2607(01)00149-3
UR  - https://pubmed.ncbi.nlm.nih.gov/11853948/
ID  - 11853948
ER  -