PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
8358532-1	1993	Interaction of ionized magnesium ([Mg2+]o) and caffeine in regulation of intracellular free calcium concentration ([Ca2+]i) in human aortic endothelial cells was studied using fura-2 and digital imaging microscopy.	Magnesium	23-32	carbonic anhydrase 2	Homo sapiens	116-119