What happens if something goes wrong?
Naturally, researchers do not want anything to go wrong during their research. But sometimes problems do occur.
That is why human subjects in a research project are insured under a special policy. Insurance is always necessary unless there are no risks associated with the research.
If you have suffered damage from participating in medical research, you should contact the researcher or the insurance company that provides cover for the research project. You can learn more about this in the information letter you received from the researcher.