Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) OKADA Michio,An Analysis of Wenckebach Periodicity during Atrial Pacing,Japanese Heart Journal,00214868,International Heart Journal Association,1977,18,6,777-788,https://cir.nii.ac.jp/crid/1390001205038136576,https://doi.org/10.1536/ihj.18.777