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APA Citation
Fischer, G., Stieh, J., Uebing, A., Grabitz, R., & Kramer, H. H. (2001). transcatheter closure of persistent ductus arteriosus in infants using the Amplatzer duct occluder. Heart, 86(4), 444–447. http://access.bl.uk/ark:/81055/vdc_100151250660.0x000006