TY - RPRT TI - Poison-based avoidance learning in nonhuman primates: use of visual cues. AU - C Johnson AU - R Beaton AU - K Hall PY - 1975 DO - 10.1016/0031-9384(75)90003-7 UR - https://pubmed.ncbi.nlm.nih.gov/806085/ ID - 806085 ER -