Resilience of elective cancer surgery systems during COVID19 lockdowns: international, prospective cohort study of planned surgery for 15 tumour types in 61 countries
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: Resilience of elective cancer surgery systems during COVID19 lockdowns: international, prospective cohort study of planned surgery for 15 tumour types in 61 countries ### Output: 