1 . Aydingoz IE,Mansur AT,Ercin Z . Conjunctival squamous cell carcinoma in a patient with hemodialy sis‐related porphyria cutanea tarda . J Dermatol,2006,33.2 . Rossmann‐Ringdahl I,Olsson R . Porphyria cutanea tar da in a Swedish population:risk factors ......