Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) NAKAGAWA Kunitoshi,Urachcal Remnant : Nine Cases Report,Nihon Gekakei Rengo Gakkaishi (Journal of Japanese College of Surgeons),0385-7883,Japanese College of Surgeons,2000,25,4,701-705,https://cir.nii.ac.jp/crid/1390282679325953792,https://doi.org/10.4030/jjcs1979.25.4_701