Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Kasamatsu Ken and Kuki Shintaro and Hayashi Yasushi,Assessment of restenosis after percutaneous coronary intervention using transthoracic Doppler echocardiography: Two-case report,Shinzo,0586-4488,Japan Heart Foundation,2010,42,1,62-66,https://cir.nii.ac.jp/crid/1390282679024988672,https://doi.org/10.11281/shinzo.42.62