Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Ishikawa Hidekazu,Untersuchungen uber das saure Mucopolysaccharid im Urin der Patienten mit Dermatosen,Japanese Journal of Dermatology. Ser. B,0368282X,Tokyo : Japanese Dermatological Association,1971-06,81,2,177-186,https://cir.nii.ac.jp/crid/1522262180401107712,