TY  - RPRT
TI  - Subgroup analyses in randomized clinical trials: statistical and regulatory issues.
AU  - Jean-Marie Grouin
AU  - Maylis Coste
AU  - John Lewis
PY  - 2005
DO  - 10.1081/bip-200067988
UR  - https://pubmed.ncbi.nlm.nih.gov/16078390/
ID  - 16078390
ER  -