24&lt;sup&gt;ND&lt;/sup&gt; CONGRESS of the Russian Society of Holter Monitoring and Non-Invasive Electrophysiology, 16&lt;sup&gt;TH&lt;/sup&gt; ALL-RUSSIAN CONGRESS "Clinical Electrocardiology", IX ALL-RUSSIAN CONFERENCE of Pediatric Cardiologists of the FMBA of Russia. COLLECTION OF ABSTRACTS
Rossijskij kardiologičeskij žurnal