Predictive value of serum levels of squamous cell carcinoma associated antigen, carcinoembryonic antigen, and carbohydrate antigen 19-9 in urothelial cancer of the urinary bladder
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: Predictive value of serum levels of squamous cell carcinoma associated antigen, carcinoembryonic antigen, and carbohydrate antigen 19-9 in urothelial cancer of the urinary bladder ### Output: 