PD‐1/PD‐L1 checkpoint immunotherapy has been proposed recently as a promising treatment in relapsed/refractory disease, used eventually in combination with traditional chemotherapy in different cancer settings. To date, no data are… Click to show full abstract
PD‐1/PD‐L1 checkpoint immunotherapy has been proposed recently as a promising treatment in relapsed/refractory disease, used eventually in combination with traditional chemotherapy in different cancer settings. To date, no data are available concerning PD‐L1 expression in ampulla of Vater carcinoma and its pre‐invasive lesions.
               
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