PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
9840261-1	1998	In this study, we investigated the effect of pentoxifylline, an inhibitor of TNF-alpha, on the contact sensitivity response induced by nickel.	Nickel	135-141	tumor necrosis factor	Cavia porcellus	77-86