@misc{indiciae4a9a788efbb2, title = {Decrease in analgesic effect of nifedipine following chronic morphine administration.}, author = {T Ohnishi and K Saito and K Matsumoto and M Sakuda and R Inoki}, year = {1988}, doi = {10.1016/0014-2999(88)90270-1}, url = {https://pubmed.ncbi.nlm.nih.gov/3220117/}, note = {Source identifier: 3220117} }