Kontis, E. Vezakis, A. Pantiora, E. Stasinopoulou, S. Polydorou, A. Voros, D. Fragulidis, G.P., Merkel cell carcinoma of unknown primary site; case presentation and review of the literature, Annals of Medicine and Surgery, (4), 434-437, 2015, Elsevier Ireland Ltd, 2049-0801