This week, Newstalk is partnering with Make-A-Wish Ireland to celebrate Wish Week. All week we've been talking to incredibly brave children and their families. And hearing about how Make-A-Wish has given them hope during the harder times in their lives. 

Adrian Kennedy was joined by Avril Walsh Evans. Avril's son, Matthew, has adenylosuccinate lyase deficiency. Medical advancements mean the symptoms can be treated but there is no cure...