PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 29121601-5 2018 The concentrations of SO42-, NH4+, NO3- and organic aerosol were positively related to the concentration of added NO2. Nitrogen Dioxide 114-117 NBL1, DAN family BMP antagonist Homo sapiens 35-38