title: Extraction of collagenase of possible leucocyte origin from ulcerating corneas of vitamin A deficient rats.
mesh_terms: D000818:Animals; D003315:Cornea / Q000201:enzymology; D003320:Corneal Ulcer / Q000201:enzymology*; D007962:Leukocytes / Q000201:enzymology; D003012:Microbial Collagenase / Q000378:metabolism*; D051381:Rats; D014802:Vitamin A Deficiency / Q000201:enzymology*
chemical_list: D003012:Microbial Collagenase