A prospective, open-label, randomized, controlled trial of radiofrequency ablation versus stereotactic body radiation therapy for recurrent small hepatocellular carcinoma.
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: A prospective, open-label, randomized, controlled trial of radiofrequency ablation versus stereotactic body radiation therapy for recurrent small hepatocellular carcinoma. ### Output: 