All patients and/or their parents or legal guardians must sign a written informed consent All patients and/or their parents or legal guardians must sign a written informed consent All patients and/or their parents or legal guardians must sign a written informed consent All patients and/or their parents or legal guardians must sign a written informed consent All patients and/or their parents or legal guardians must sign a written informed consent All patients and/or their parents or legal guardians must sign a written informed consent All patients and/or their parents or legal guardians must sign a written informed consent (patient assent is also recommended when applicable according to each institutions policy) All patients and/or their parents or legal guardians must sign a written informed consent All patients and/or their parents or legal guardians must sign a written informed consent All patients and/or their parent or legal guardian must sign a written informed consent All patients and/or their parents or legal guardians must sign a written informed consent All patients and/or their parents or legal guardians must sign a written informed consent All patients and/or their parents or legal guardians must sign a written informed consent All patients and/or their parents or legal guardians must sign a written informed consent All patients and/or their parents or legal guardians must sign a written informed consent Each patients parents or legal guardians must sign a written informed consent All patients and/or their parents or legal guardians must sign a written informed consent All patients and/or their parents or legal guardians must sign a written informed consent. All patients and/or their parents or legal guardians must sign a written informed consent All patients and/or their parents or legal guardians must sign a written informed consent All patients and/or their parents or legal guardians must sign a written informed consent All patients and/or their parents or legal guardians must sign a written informed consent