Fig. 1From: Increased phototoxic burn tolerance time and quality of life in patients with erythropoietic protoporphyria treated with afamelanotide – a three years observational studyMaximal phototoxic burn tolerance time (PBTT) before and under treatment with afamelanotide. Thirty-nine patients were assessed before first dose, and 37 during treatment with afamelanotideBack to article page