Prof Nicolson believes the policy implications are that great things can be achieved by early identification of a problem, followed by short-term intervention for the majority of those having difficulties - leaving longer term help only for those who may have dyslexia.

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"Multi-agency support teams, or multi-disciplinary teams as they are more commonly known, are exceptionally important in the early identification of difficulties which children are encountering with their development, or a problem which may prevent them achieving their full potential, " he said.

BBC: Multi-agency support teams cont'd.