1 Cardiology Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal. Electronic address: joaopedroborgesrosa@gmail.com.
2 Cardiology Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal; Coimbra Institute for Clinical and Biomedical Research, Faculdade de Medicina, Universidade de Coimbra, Coimbra, Portugal.
3 Cardiology Department, Centro Hospitalar de Entre o Douro e Vouga, Santa Maria da Feira, Portugal.
4 Cardiology Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.