TY  - RPRT
TI  - Too many confounding variables.
AU  - S Sudhindran
AU  - N Emms
AU  - S Sinha
AU  - A Kumar
PY  - 2000
DO  - 10.1097/00007890-200011270-00027
UR  - https://pubmed.ncbi.nlm.nih.gov/11118106/
ID  - 11118106
ER  -