A new era in patent foramen ovale closure ¿ a percutaneous suture-based `deviceless¿ technique (NobleStitch®): Experience of a Portuguese center Ana Neto; Carlos Xavier Resende; Marta Tavares Silva; João Carlos Silva; Filipe Macedo;

Iatrogenic ventricular fibrillation in Wolff-Parkinson-White syndrome Alzira Nunes; Ana Lebreiro; Manuel Campelo; Luís Adão; Maria Júlia Maciel;

Coronary artery fistulas: A 12-year single-center experience Sofia Torres; Mariana Vasconcelos; Marta Tavares Silva; Jorge Moreira; João Carlos Silva; Filipe Macedo;