How would you handle an unethical request from a superior?

"Maintaining integrity in clinical research is extremely important, so I would handle this situation very carefully. First, I want to clarify the request to ensure I am not misinterpreting it. I would also want to do that in writing and request a response via email or memo to ensure that I best understand what is being asked of me. Once I understand clearly, I politely indicate my discomfort with the task and suggest an alternative approach. If my supervisor were to persist, I would ultimately seek guidance from a superior."