TY - JOUR T1 - Testing the association between tobacco and cannabis use and cognitive functioning: findings from an observational and Mendelian randomization study JO - Drug and Alcohol Dependence UR - https://eprints.whiterose.ac.uk/id/eprint/170786 PY - 2021/04/01 AU - Mahedy L AU - Wootton R AU - Suddell S AU - Skirrow C AU - Field M AU - Heron J AU - Hickman M AU - Munafo MR ED - DO - DOI: 10.1016/j.drugalcdep.2021.108591 PB - Elsevier VL - 221 Y2 - 2025/04/08 ER -