@misc{indiciaef550b530e592, title = {Conditioning with delayed vitamin injections.}, author = {J Garcia and F R Ervin and C H Yorke and R A Koelling}, year = {1967}, doi = {10.1126/science.155.3763.716}, url = {https://pubmed.ncbi.nlm.nih.gov/6016955/}, note = {Source identifier: 6016955} }