PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1372874-4 1992 Electron microscopic examination of gonococci in eight exudates showed a surface structure stained by Ruthenium red which disappeared in most samples when they were treated with neuraminidase. Ruthenium Red 102-115 neuraminidase 1 Homo sapiens 178-191