TY  - RPRT
TI  - Calculating confidence intervals for survival time analyses.
AU  - D Machin
AU  - M J Gardner
PY  - 1988
DO  - 10.1136/bmj.296.6633.1369
UR  - https://pubmed.ncbi.nlm.nih.gov/3134990/
ID  - 3134990
ER  -