TY  - RPRT
TI  - Are negative toxicological data suspect: an epilog.
AU  - P J Gehring
PY  - 1989
DO  - 10.1016/0273-2300(89)90045-7
UR  - https://pubmed.ncbi.nlm.nih.gov/2756164/
ID  - 2756164
ER  -