TY  - RPRT
TI  - Coding ordinal independent variables in multiple regression analyses.
AU  - S D Walter
AU  - A R Feinstein
AU  - C K Wells
PY  - 1987
DO  - 10.1093/oxfordjournals.aje.a114532
UR  - https://pubmed.ncbi.nlm.nih.gov/3812437/
ID  - 3812437
ER  -