Increase in benign acute childhood myositis in the post-COVID era: a retrospective study from a tertiary pediatric center. - Brisca G; Mariani M; Bellini T; Cervello C; Di Jorgi M; Mesini A; Strati MF; Pirlo D; Bruno C; Piccotti E; Castagnola E; Moscatelli A (European journal of pediatrics, 2025)