TY - RPRT TI - Cocaine and crack. AU - A R Patel AU - J Merrill AU - H N Vidyasagar AU - A Kahn PY - 1989 DO - 10.1136/bmj.299.6703.856-a UR - https://pubmed.ncbi.nlm.nih.gov/2510863/ ID - 2510863 ER -