PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 23083038-5 2012 RESULTS: The plasma BlyS level in sero-negative RA was higher compared to the sero-positive RA patients (1.73+-1.71 vs. 0.99+-0.59 ng/mL, P<0.05) and osteoarthritis (OA) patients (1.73+-1.71 vs. 0.59+-0.12 ng/mL, P<0.05). sero 34-38 TNF superfamily member 13b Homo sapiens 20-24