TY - RPRT TI - Calcium channel antagonists reduce the cocaine-induced decrease in cardiac output in a subset of rats. AU - M M Knuepfer AU - C A Branch PY - 1993 DO - 10.1097/00005344-199303000-00007 UR - https://pubmed.ncbi.nlm.nih.gov/7681499/ ID - 7681499 ER -