The parents of a seriously ill toddler from Liverpool will go to the High Court later to argue their son should continue to get life support treatment.
20-month-old Alfie Evans suffers from constant seizures. Doctors have been unable to diagnose his condition.
Specialists at Alder Hey say continuing life support treatment is not in Alfie's best interests.
His parents want permission to fly Alfie to a hospital in Rome for possible diagnosis and treatment