Fig. 2From: Multi-criteria decision analysis (MCDA): testing a proposed MCDA framework for orphan drugsThe total drug score in relation to the average annual cost (€) based on UK list prices. PAH: Pulmonary arterial hypertension; MPS II: Mucopolysaccharidosis II; LGS: Lennox-Gastaut syndrome; MPS VI: Mucopolysaccharidosis VI; PNH: Paroxysmal nocturnal haemoglinuria; MDS: Myelodysplastic syndromes Back to article page