TY  - RPRT
TI  - Aalen's linear model for sampled risk set data: a large sample study.
AU  - J Zhang
AU  - O Borgan
PY  - 1999
DO  - 10.1023/a:1009640226202
UR  - https://pubmed.ncbi.nlm.nih.gov/10650742/
ID  - 10650742
ER  -