Locoregional vs. distant relapse: impact on survival in patients with recurrent/metastatic head and neck squamous cell carcinoma (R/M HNSCC) treated with immunotherapy
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request. ### Instruction: Identify all the mentioned drugs in the given text. Text may or may not contain drug. If they contain more than 1 drug, use ";" as delimiter and join them. ### Input: Locoregional vs. distant relapse: impact on survival in patients with recurrent/metastatic head and neck squamous cell carcinoma (R/M HNSCC) treated with immunotherapy ### Output: 