NPPB and COVID-19: The hsTn, NT proBNP, and/or hsCRP measurements, collected during follow-up visits, were available for 60 COVID-19 patients and for 14 control subjects (the reference normal values for these parameters were ≤10 ng/L, ≤449 pg/mL, and ≤3 mg/L, respectively, according to the analysis lab).