So far, 350 EB (Epidermolysis bullosa) patients have registered at the specialized health house for the group, said Seyyed Hamid Reza Hashemi Golpayegani, head of EB group at the Iranian Rare Disease Foundation (RADOIR). “The number is estimated to reach 500 by the end of the current Iranian year (March 20),” he said, IRNA reported.