PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 21420860-0 2011 Imidazopyridine CB2 agonists: optimization of CB2/CB1 selectivity and implications for in vivo analgesic efficacy. imidazopyridine 0-15 cannabinoid receptor 1 Rattus norvegicus 50-53