TY  - RPRT
TI  - Morphine physical dependence unaltered by previous dependence on morphine.
AU  - E Wei
AU  - H Loh
PY  - 1972
DO  - 10.1038/238396a0
UR  - https://pubmed.ncbi.nlm.nih.gov/4559582/
ID  - 4559582
ER  -