title: CRT-D Implantation Through a Persistent Left Superior Vena Cava.
authors.affiliation: Hospital Santa Maria, Serv Cardiologia I, Lisbon Academic Medical Centre, CCUL, Lisbon, Portugal.
authors.forename: Rui
authors.initials: R
authors.lastname: Placido
authors.affiliation: Hospital Santa Maria, Serv Cardiologia I, Lisbon Academic Medical Centre, CCUL, Lisbon, Portugal.
authors.forename: Joao
authors.initials: J
authors.lastname: Sousa
authors.affiliation: Hospital Santa Maria, Serv Cardiologia I, Lisbon Academic Medical Centre, CCUL, Lisbon, Portugal.
authors.forename: Pedro
authors.initials: P
authors.lastname: Marques
keywords: CRT-D Implantation; Persistent Left Superior Vena Cava