Subtle changes on electrocardiogram in severe patients with COVID-19 may be predictors of treatment outcome - Chaikovsky, Illya; Dziuba, Dmytro; Kryvova, Olga; Marushko, Katerina; Vakulenko, Julia; Malakhov, Kyrylo; Loskutov, Оleg (Frontiers in Artificial Intelligence, 2025)