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Zaker-Shahrak, Ruzbeh; Fuhrer, Jürg; Meier, Bernhard (2008). Transseptal puncture for catheter ablation of atrial fibrillation after device closure of patent foramen ovale. Catheterization and cardiovascular interventions, 71(4), pp. 551-2. Hoboken, N.J.: Wiley-Blackwell 10.1002/ccd.21363
