PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 28608532-9 2017 CONCLUSION AND IMPLICATIONS: Our results suggest that mu receptor-D1 receptor heterodimers may be involved in the dopamine-independent expression of locomotor sensitization to opiates. Dopamine 114-122 dopamine receptor D1 Mus musculus 66-77