Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) KUNII HYOTARO,Inactivation of Human Chorionic Gonadotropin Extracted from Chorionic Tissue and Serum by Neuraminidase,The Tohoku Journal of Experimental Medicine,00408727,Tohoku University Medical Press,1971,105,4,317-325,https://cir.nii.ac.jp/crid/1390001204240360320,https://doi.org/10.1620/tjem.105.317