TY  - RPRT
TI  - Adjustment for baseline covariates: an introductory note.
AU  - Jean-Marie Grouin
AU  - Simon Day
AU  - John Lewis
PY  - 2004
DO  - 10.1002/sim.1646
UR  - https://pubmed.ncbi.nlm.nih.gov/14981669/
ID  - 14981669
ER  -