TY  - RPRT
TI  - A simple program to create exact person-time data in cohort analyses.
AU  - J Wood
AU  - D Richardson
AU  - S Wing
PY  - 1997
DO  - 10.1093/ije/26.2.395
UR  - https://pubmed.ncbi.nlm.nih.gov/9169176/
ID  - 9169176
ER  -