Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Tsuchioka Yukiko and Muraoka Yuuji and Morishima Nobuyuki and Hiraoka Akito and Fujiwara Hitoshi and Nakayama Kenshyo and Shiode Norio and Karakawa Shinji and Yamagata Togo and Matsuura Hideo and Kajiyama Goro,Reentry within the upper portion of the atrioventricular node with and without conduction delay within the lower portion of the atrioventricular node,Shinzo,0586-4488,Japan Heart Foundation,1995,27,9,818-824,https://cir.nii.ac.jp/crid/1390001205488705536,https://doi.org/10.11281/shinzo1969.27.9_818