PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 10036860-4 1998 A selective 5-HT1B/1D agonist sumatriptan (0.01-10 mumol/L) caused nitrite production. Nitrites 67-74 5-hydroxytryptamine receptor 1B Homo sapiens 12-18