It's common for interviewers to ask if you have any questions at the end of the interview. This is an opportunity for you to clarify any concerns you may have about the position or Massachusetts General Hospital. It also shows the interviewer that you are engaged and interested in learning all you can about the organization. It's a good idea to come prepared with a few questions, such as about the company culture or opportunities for growth within the organization. Remember, the interview is a two-way conversation, so don't hesitate to ask questions!