Comparison of median antibody titers between newly diagnosed myocarditis patients at initial diagnosis according to recovery status at follow-up (Rec, recovery of normal function; NR, nonrecovery of normal function). Serum titers of (A) anti–human cardiac myosin (HCM), (B) anti–beta-adrenergic receptor 1 (BAR1), (C) anti–beta-adrenergic receptor 2 (BAR2), and (D) anti–muscarinic receptor 2 (M2) were compared between groups. There was no significant difference between groups based on recovery status. P < .05 was considered to be statistically significant.