1 Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia e Espinho, Rua Conceição Fernandes, 4434-532, Vila Nova de Gaia, Portugal. marianardsilva@gmail.com.
2 Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia e Espinho, Rua Conceição Fernandes, 4434-532, Vila Nova de Gaia, Portugal.