TY  - RPRT
TI  - A partially grouped logrank test.
AU  - R Sposto
AU  - D Stablein
AU  - S Carter-Campbell
PY  - 1997
DO  - 10.1002/(sici)1097-0258(19970330)16:6<695::aid-sim436>3.0.co;2-c
UR  - https://pubmed.ncbi.nlm.nih.gov/9131757/
ID  - 9131757
ER  -