English Erythropoietic protoporphyria Cited by user YWNB on 03 Apr 2016 Erythropoietic protoporphyria (EPP) is a form of porphyria, which varies in severity and can be very painful.
English Erythropoietic protoporphyria Cited by user YWNB on 03 Apr 2016 Erythropoietic protoporphyria (EPP) is a form of porphyria, which varies in severity and can be very painful.