PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 31772157-5 2019 MRM retrieval + ketamine (RET + KET) effectively reduced the reinforcing effects of alcohol and long-term drinking levels, compared to ketamine or retrieval alone. Ketamine 16-24 ret proto-oncogene Homo sapiens 26-29