NPPB and chronic thromboembolic pulmonary hypertension: Reply to Pagnoni et al. Clarifying the Clinical Utility of NTAR/RGR for PAH and CTEPH. Comment on “Iancu et al. Evaluating NT-proBNP-to-Albumin (NTAR) and RDW-to-eGFR (RGR) Ratios as Biomarkers for Predicting Hospitalization Duration and Mortality in Pulmonary Arterial Hypertension (PAH) and Chronic Thromboembolic Pulmonary Hypertension (CTEPH). Diagnostics 2025, 15, 2126”