358 Trial in progress: A pilot study of combined immune checkpoint inhibition in combination with ablative therapies in subjects with hepatocellular carcinoma (HCC) oleh Peter Doran, Marie Galligan, Ronan Ryan, Austin Duffy, Tim Greten, Hailey Carroll, Umair Aleem, Pooja Varghese, Michèle Bourke, Katherine Hoey, Stephen Stewart, Cliona O’Farrelly, Diarmaid Houlihan, Raymond McDermott