Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) WILLIAMS WG,Outflow obstruction after the arterial switch operation. A multiinstitutional study. Congenital Heart Surgeons Society,J Thorac Cardiovasc Surg.,,,1997,114,,975-987,https://cir.nii.ac.jp/crid/1570291225568177536,