Canna~Fangled Abstracts A Single Intrathecal or Intraperitoneal Injection of CB2 Receptor Agonist Attenuates Bone Cancer Pain and Induces a Time-Dependent Modification of GRK2. 2016 Mar 2. Lu C1, Shi L2, Sun B3, Zhang Y4, Hou B5, Sun Y6, Ma Z7, Gu X8. Author information Abstract…Freedom WaresMarch 2, 2016