Role of the anatomic site in the association of HLA class I antigen expression level in metastases with clinical response to ipilimumab therapy in patients with melanoma ========================================================================================================================================================================= * Andrea Ladányi * Eszter Papp * Anita Mohos * Tímea Balatoni * Gabriella Liszkay * Judit Oláh * Anita Varga * Zsuzsanna Lengyel * Gabriella Emri * Soldano Ferrone