Reiss, Nils, Ulrich Schuett, Ariane Maleszka, Georg Kleikamp, Soren Schenk, and Jan Gummert. 2009. “Surgical Removal of Occluder Devices: Complications and Pitfalls”. The Heart Surgery Forum 12 (3):E143-E146. https://doi.org/10.1532/HSF98.20091041.