TY  - RPRT
TI  - Morphine abstinence is associated with increased brain cyclic AMP.
AU  - H O Collier
AU  - D L Francis
PY  - 1975
DO  - 10.1038/255159b0
UR  - https://pubmed.ncbi.nlm.nih.gov/165429/
ID  - 165429
ER  -