Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) DAVID P. FROMAN,Chicken Acrosin: Extraction and Purification,Poultry Science,0032-5791,Elsevier BV,1990-05,69,5,812-817,https://cir.nii.ac.jp/crid/1360292619778043392,https://doi.org/10.3382/ps.0690812