Paraneoplastic porphyria cutanea tarda associated with cholangiocarcinoma: Case report - SÖKMEN, Mehmet; DEMİRSOY, Hüseyin and ERSOY, Özdal and GÖKDEMİR, Gonca and AKBAYIR, Nihat and KARACA, Çetin and ÖZDİL, Kamil and KESİCİ, Beşir and ÇALIŞKAN, Can and YILMAZ, Banu (Turkish Journal of Gastroenterology, 2007)