PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 32514120-14 2020 Cheap, simple ammonium salts act as sigma-1 receptor agonists and antagonists in vivo and require further investigation. ammonium salts 14-28 sigma non-opioid intracellular receptor 1 Mus musculus 36-52