Background: Trials in developing countries suggest that improving young children's diet may benefit cognitive development. Whether dietary composition influences young children's cognition in developed countries is unclear. Although many studies have examined the relation between type of milk received in infancy and subsequent cognition, there has been no investigation of the possible effect of variations in the weaning diet.

Parents frequently reported poor quality of life and cognitive, emotional and behavioural problems in their children following TBI. These preliminary findings indicate that children, after TBI, are at risk of developing persistent clinical problems and require follow-up beyond the acute period of their recovery.

There is an absence of randomised controlled trials and a very limited number of studies using other methodological approaches, providing at this time no conclusive evidence for the efficacy of cognitive rehabilitation for children with acquired brain injury, but a clear need to address a range of methodological difficulties in this field of enquiry.

A 'core plus' approach is suggested in which core assessments (both direct and indirect tests) are recommended for all clinical trials. The core component is a relatively brief screening assessment that, in most countries, is a sub-component of routine clinical provision. The 'plus' components enable the addition of assessments which can be selected by individual countries and/or tumour-, age-, and location-specific groups. The implementation of a QoS protocol common to all European clinical studies of childhood brain tumours is also discussed.

It is feasible but challenging to use Goal Management Training in children with traumatic brain injury. Further research is needed in relation to how to promote generalization and how to increase the involvement of the child's "everyday people" in the intervention.