IL17A and myocarditis: Protein analysis showed a 2.48-fold increase in IL-17A protein expression in PS myocarditis compared with no-PS myocarditis and a six-fold increase when compared with controls (respectively, 51,560 ± 899 vs. 20,734.5 ± 2502, p = 0.037, p < 0.01 and 51,560 ± 899 vs. 8600 ± 1055, p = 0.005, p < 0.001).