PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 7970238-4 1994 Urethane induced the largest amount of Fos-ir neurons (n = 8439), while fentanyl/midazolam the smallest (n = 112). Urethane 0-8 Fos proto-oncogene, AP-1 transcription factor subunit Rattus norvegicus 39-42