PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
1851320-2	1991	The yield of CEA was, in some cases, 20-30 times more than that obtained by the usual method with perchloric acid.	Perchloric Acid	98-113	CEA cell adhesion molecule 3	Homo sapiens	13-16