Abächerli, Roger Abaci, Adnan Abad Romero, Rocío Abali, Gülcan Abasta-Jiménez, Marcela Abazid, Rami M., King Fahad Specialist Hospital, Prince Sultan Cardiac Center Qassim, Buraydah, Saudi Arabia Abbas, Osama Abd El Hamid, Mohamed, Cardiology Department, Faculty of Medicine, Zagazig University, Egypt Abd El Salam, Khaled, Cardiology Department, Faculty of Medicine, Zagazig University, Egypt Abdalla, Ahmed Abdel-Barr, Mohamed G., Ain Shams University Abdel-Salam, Zainab, Cardiology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt Abdel-Salam, Zainab Abdel-Salam, Zainab, Cardiology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt Abdel-Wahab, Mohamed, Heart Center Bad Segeberg Abdelaziz, Hesham K. Abdelghafor, Marwan, University of Witten/Herdecke Abdelrahman, Amr Abdi, Seifollah Abdu, Mohamed Abdullah, Abdullah Abe, Shichiro Abe, Yukio Abelairas-Gómez, Cristian Abellas-Sequeiros, María