_:vb50951578 . _:vb50951578 "url:https://www.rarediseases.org/rare-disease-information/rare-diseases/byID/321/viewAbstract"^^ . _:vb50951578 . _:vb50951578 . _:vb50951578 . _:vb50951578 . _:vb50951578 "An acute porphyria characterized by painful, blistering skin lesions that develop on sun-exposed skin."^^ . _:vb50951578 . _:vb50951578 "url:http://en.wikipedia.org/wiki/Porphyria_cutanea_tarda"^^ .