TY - CONF T1 - Bosentan is a cost-effective treatment for united kingdom patients with pulmonary arterial hypertension of WHO class III JO - VALUE HEALTH PY - 2008/05/01 AU - Stevenson MD AU - MacDonald FC AU - Langley J AU - Akehurst RL ED - VL - 11 IS - 3 SP - A197 EP - A197 Y2 - 2025/02/05 ER -