PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
1910074-6	1991	CCa2+ showed a significant positive correlation with oxygen tension (PO2) (r = 0.71, P less than 0.002).	PO-2	69-72	crystallin beta B2	Homo sapiens	0-4