PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
1800116-6	1991	Threshold concentrations of histamine, U44619 and PGD2 caused a similar non-parallel leftward shift of the concentration-response curve of strips with or without epithelium to methacholine (P less than 0.05).	Methacholine Chloride	176-188	prostaglandin D2 synthase	Homo sapiens	50-54