Lung transplantation (LT) is the standard of care for selected patients with chronic respiratory failure. Chronic lung allograft dysfunction (CLAD) (i.e. “Bronchiolitis obliterans syndrome” (BOS) and “Restrictive Allograft Syndrome” (RAS)) represents a major health risk for LT recipients, requiring the use of heavy treatments and possible retransplantation. Observed in almost 50% of patients afte ...