TNNI3 and myocarditis: Univariate logistic regression showed that higher cTnI (unadjusted OR: 1.013, 95% CI: 1.000–1.025, p = 0.047) and higher CK‐MB (unadjusted OR: 1.121, 95% CI: 1.002–1.254, p = 0.046) after ICI treatment were associated with the higher risk of ICI‐associated severe myocarditis.