Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Onouchi Zenshiro and Tomisawa Munehiko and Coto Masakatsu and Nakata. Kazuyasu,Isolated persistent left superior vena cava,Shinzo,0586-4488,Japan Heart Foundation,1974,6,10,1462-1466,https://cir.nii.ac.jp/crid/1390001205492805632,https://doi.org/10.11281/shinzo1969.6.10_1462