TY - RPRT TI - Simultaneous alcohol and cannabis expectancies predict simultaneous use. AU - Sara Smucker Barnwell AU - Mitch Earleywine PY - 2006 DO - 10.1186/1747-597x-1-29 UR - https://pubmed.ncbi.nlm.nih.gov/17034634/ ID - 17034634 ER -