PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9189892-2 1997 This study was designed to evaluate the abundance of immunoreactive NF-L (68 kDa) proteins in post-mortem brains of chronic opiate addicts who had died of a heroin or methadone overdose. Methadone 167-176 neurofilament light chain Homo sapiens 68-72