标题:Erratum to: A randomized controlled trial investigating the effects of PCSO-524®, a patented oil extract of the New Zealand Green Lipped Mussel ( Perna canaliculus ), on the behaviour, mood, cognition and neurophysiology of children and adolescents (aged 6–14 years) experiencing clinical and sub-clinical levels of hyperactivity and inattention: study protocol ACTRN12610000978066