PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 19373973-0 2009 Randomized study of the effect of pentoxifylline or octreotide on serum levels of TNF-alpha and IL-6 after endoscopic retrograde cholangiopancreatography. Pentoxifylline 34-48 interleukin 6 Homo sapiens 96-100