Safety and efficacy exploration of intraperitoneal perfusion of PD-1 monoclonal antibody for patients with primary liver cancer with malignant ascites: A prospective, single-arm, phase Ib clinical trial.
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: Safety and efficacy exploration of intraperitoneal perfusion of PD-1 monoclonal antibody for patients with primary liver cancer with malignant ascites: A prospective, single-arm, phase Ib clinical trial. ### Output: 