World Health Organization functional class(English)
- a four-tier system (I–IV) used to assess the severity of symptoms and physical limitation in patients with Pulmonary Hypertension (PH)
- ERS, NT-proBNP, PAH, PH, PVR, RVEDV, RVEF, RVESV, SVI, TAPSE, TTE, WHO, 6MWD
- Respiratory system, Classification
- https://www.pha…nctional-class/
- https://doi.org…3003.01323-2024