PIK3CA mutations co-occurring with copy number gain identify patients with adverse outcome and potentially different treatment sensitivity among hormone receptor positive and HER2 negative metastatic breast cancer
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: PIK3CA mutations co-occurring with copy number gain identify patients with adverse outcome and potentially different treatment sensitivity among hormone receptor positive and HER2 negative metastatic breast cancer ### Output: 