7. Do I have to take part? No!
It is up to you. You will be given information about the study to read and keep. If you decide to take part, you may be asked to sign a form saying that you agree to take part (an assent form). Your parents/guardians will also be asked to sign a form and give their consent to your taking part.
If you agree to take part and sign the form, you are free to change your mind and stop taking part at any time without giving a reason.
If you decide not to take part, or stop taking part at any time during the course of the study, this will not affect the care you get in any way and no one will be upset with you.