PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
19634003-5	2010	These carboxylic acid groups are expected to enhance calcium ion binding to the cerasome surface, causing an increase of HAp nucleation sites.	Calcium	53-60	retinoic acid receptor beta	Homo sapiens	121-124	
24347473-2	2014	The structure of HAp ensures its probable separation capability, including cation exchange with P-sites (negatively charged pairs of crystal phosphates), calcium coordination, anion exchange with C-sites (positively charged pairs of crystal calcium ions).	Calcium	154-161	retinoic acid receptor beta	Homo sapiens	17-20	
24347473-2	2014	The structure of HAp ensures its probable separation capability, including cation exchange with P-sites (negatively charged pairs of crystal phosphates), calcium coordination, anion exchange with C-sites (positively charged pairs of crystal calcium ions).	Calcium	241-248	retinoic acid receptor beta	Homo sapiens	17-20	
17380293-3	2007	The precipitates can be regarded as a calcium-deficient HAp, the PO(4) sites of which are partly occupied by Nb ions.	Calcium	38-45	retinoic acid receptor beta	Homo sapiens	56-59