TY  - RPRT
TI  - Factorial design considerations.
AU  - Stephanie Green
AU  - Ping-Yu Liu
AU  - Janet O'Sullivan
PY  - 2002
DO  - 10.1200/jco.2002.03.003
UR  - https://pubmed.ncbi.nlm.nih.gov/12177102/
ID  - 12177102
ER  -