Q waves are the strongest electrocardiographic variable associated with primary prophylactic implantable cardioverter-defibrillator benefit: a prospective multicentre study

Ari Pelli, M. Juhani Junttila, Tuomas V. Kentta , Simon Schlo ̈gl,
Markus Zabel, Marek Malik, Tobias Reichlin, Rik Willems , Marc A. Vos, Markus Harden , Tim Friede , Christian Sticherling, and Heikki V. Huikuri1; the EU-CERT-ICD Study Investigators