TY - RPRT TI - Chemical interactions in methamphetamine reinforcement. AU - R Pickens AU - R A Meisch AU - J A Dougherty PY - 1968 DO - 10.2466/pr0.1968.23.3f.1267 UR - https://pubmed.ncbi.nlm.nih.gov/5717439/ ID - 5717439 ER -