TY - STAND AU - T. Chen AU - R. Knaggs AU - L. Chen BT - Br J Anaesth DO - 10.1016/j.bja.2021.06.049 PY - 2021 T2 - Br J Anaesth TI - Association between opioid-related deaths and prescribed opioid dose and psychotropic medicines in England: a case-crossover study SN - 0007-0912 ER -