TY - RPRT TI - Conditioning with delayed vitamin injections. AU - J Garcia AU - F R Ervin AU - C H Yorke AU - R A Koelling PY - 1967 DO - 10.1126/science.155.3763.716 UR - https://pubmed.ncbi.nlm.nih.gov/6016955/ ID - 6016955 ER -