TY  - RPRT
TI  - Dose preference during pentobarbital self-administration by humans.
AU  - R Pickens
AU  - M R Cunningham
AU  - L L Heston
AU  - E Eckert
AU  - L K Gustafson
PY  - 1977
UR  - https://pubmed.ncbi.nlm.nih.gov/909065/
ID  - 909065
ER  -