PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
2229313-6	1990	A negative correlation existed between PTH and 25-hydroxy-cholecalciferol (r = -0.49; P less than 0.05), the main circulating metabolite of vitamin D.	Calcifediol	47-73	parathyroid hormone	Homo sapiens	39-42