The patients in this group had significantly higher prevalences of myocarditis, abdominal pain, shock, lymphopenia, elevated C-reactive protein (indicative of liver inflammation), ferritin (accute-phase reactant), troponin (indicative of cardiac damage), brain natriuretic peptide (BNP), or proBN (indicative of heart failure). The gene discussed is NPPB; the disease is lymphopenia.