1.40 children who are referred to decapeptyl treatment will receive the injection once with a medical clown, and the next time with out the clown and vise verse. The pain and anxiety perception of the child and caregivers will be compare between the two scenarios. The children will be randomly assigned to begin treatment in the presence of a clown and the next injection without medical clown and the second group starts the injections without medical clown and the next shot in the presence of a clown.