@misc{indiciae9e5ca4505a26, title = {LSD and fixed-internal responding in the rat.}, author = {J L Altman and J B Appel}, doi = {10.1016/0091-3057(75)90140-9}, url = {https://pubmed.ncbi.nlm.nih.gov/1144475/}, note = {Source identifier: 1144475} }