Zeljkovic, Ivan, Haran Burri, Alexander Breitenstein, Peter Ammann, Andreas Mueller, Angelo Auricchio, Etienne Delacrétaz, Kenneth Dickstein, Cecilia Linde, Camilla Normand, and Christian Sticherling. 2018. “Cardiac Resynchronisation Therapy (CRT) Survey II: CRT Implantation in Europe and in Switzerland”. Swiss Medical Weekly 148 (3334):w14643. https://doi.org/10.4414/smw.2018.14643.