PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
22895361-4	2013	Collagen content was significantly increased in the skin of ERalpha(-/-) mice, as measured by acetic acid extraction and the hydroxyproline assay, and correlated with the decreased levels of matrix metalloproteinase (MMP)-15 and elevated collagen production by ERalpha(-/-) fibroblasts.	Hydroxyproline	125-139	estrogen receptor 1 (alpha)	Mus musculus	60-67