TY  - RPRT
TI  - Long-term isolation in rats reduces morphine response.
AU  - D M Katz
AU  - H Steinberg
PY  - 1970
DO  - 10.1038/228469a0
UR  - https://pubmed.ncbi.nlm.nih.gov/5482503/
ID  - 5482503
ER  -