References

• Swanson JM, Kinsbourne M, Nigg J, Lanphear B, Stefanatos GA, Volkow N, et al. Etiological subtypes of attention deficit hyperactivity disorder: brain imaging, molecular genetics and environmental factors and the dopamine hypothesis. Neuropsychol Rev 2007; 17(1): 39–59.
   PubMed Web of Science ®Google Scholar
• Youdim MB. Brain iron deficiency and excess; cognitive impairment and neurodegeneration with involvement of striatum and hippocampus. Neurotox Res 2008; 14(1): 45–56.
   PubMed Web of Science ®Google Scholar
• Konofal E, Lecendreux M, Arnulf I, Mouren MC. Iron deficiency in children with attention deficit hyperactivity disorder. Arch Pediatr Adolesc 2004; 158(12): 1113–5.
   PubMedGoogle Scholar
• Oner O, Alkar O, Oner P. Relation of ferritin levels with symptom ratings and cognitive performance in children with ADHD. Pediatr Int 2008; 50(1): 40–4.
   PubMed Web of Science ®Google Scholar
• Juneja M, Jain R, Singh V, Mallika V. Iron deficiency in Indian children with attention deficit hyperactivity disorder. Indian Pediatr 2010; 47(11): 955–8.
   PubMed Web of Science ®Google Scholar
• Oner O, Oner P, Bozkurt OH, Odabas E, Keser N, Karadag H, et al. Effects of zinc and ferritin levels on parent and teacher reported symptom scores in attention deficit hyperactivity disorder. Child Psychiatry Hum Dev 2010; 41(4): 441–7.
   PubMed Web of Science ®Google Scholar
• Millichap JG, Yee MM, Davidson SI. Serum ferritin in children with attention-deficit hyperactivity disorder. Pediatr Neurol 2006; 34(3): 200–3.
   PubMed Web of Science ®Google Scholar
• Menegassi M, Mello ED, Guimarães LR, Matte BC, Driemeier F, Pedroso GL, et al. Food intake and serum levels of iron in children and adolescents with attention-deficit/hyperactivity disorder. Rev Bras Psiquiatr Jun 2010; 32(2): 132–8.
   PubMed Web of Science ®Google Scholar
• Sever Y, Ashkenazi A, Tyrano S, Weizman A. Iron treatment in children with attention deficit hyperactivity disorder. Neuropsychobiology 1997; 35(4): 178–80.
   PubMed Web of Science ®Google Scholar
• Konofal E, Lecendreux M, Deron J, Marchand M, Cortese S, Zaïm M, et al. Effects of iron supplementation on attention deficit hyperactivity disorder in children. Pediatr Neurol 2008; 38:20–6.
   PubMed Web of Science ®Google Scholar
• Cortese S, Konofal E, Bernardina BD, Mouren MC, Lecendreux M. Sleep disturbances and serum ferritin levels in children with attention-deficit/hyperactivity disorder. Eur Child Adolesc Psychiatry 2009; 18(7): 393–9.
   PubMed Web of Science ®Google Scholar
• Hinshaw SP. Moderators and mediators of treatment outcome for youth with ADHD: understanding for whom and how interventions work. Ambul Pediatr 2007; 7(Suppl.1): S91–S100.
   Google Scholar
• Stein M, Sarampote CS, Waldman ID, Robb AS, Conlon C, Pearl PL, et al. A dose-response study of OROS methylphenidate in children with attention-deficit hyperactivity disorder. Pediatrics 2003; 112(5): 404.
   PubMed Web of Science ®Google Scholar
• Lahey BB, Pelham WE, Loney J, Lee SS, Willcutt E. Instability of the DSM-IV subtypes of ADHD from preschool through elementary school. Arch Gen Psychiatry 2005; 62(8): 896–902.
   PubMed Web of Science ®Google Scholar
• Wolraich ML, Greenhill LL, Pelham W, Swanson J, Wilens T, Palumbo D, et al. Randomized, controlled trial of OROS methylphenidate once a day in children with attention deficit/hyperactivity disorder. Pediatrics 2001; 108(4): 883–92.
   PubMed Web of Science ®Google Scholar
• Steele M, Weiss M, Swanson J, Wang J, Prinzo RS, Binder CE. A randomized, controlled, effectiveness trial of oros-methylphenidate compared to usual care with immediate-release methylphenidate in attention deficit- hyperactivity disorder. Can J Clin Pharmacol 2006; 13(1): 50–62.
   PubMedGoogle Scholar
• Kaufman J, Birmaher B, Brent D, Rao U, Flynn C, Moreci P, et al. Schedule for affective disorders and schizophrenia for school-age children-present and lifetime version (K-SADS-PL): initial reliability and validity data. J Am Acad Child Adolesc Psychiatry 1997; 36(7): 980–8.
   PubMed Web of Science ®Google Scholar
• Gökler B, Ünal F, Pehlivantürk B, Çengel Kültür SE, Akdemir D, Taner Y. Validity and reliability of the Turkish form of schedule of affective disorders and schizophrenia for school age children, present and life-time version (K-SADS-PL). Çocuk ve Gençlik Ruh Sağlığı Dergisi-Turkish Journal of Child and Adolescent Mental Health 2004; 11(3): 109–16. (Turkish).
   Google Scholar
• Conners CK. Conners' Rating Scales- Revised. North Tonawada, NY: Multi-Health Systems Publishing, 1997.
   Google Scholar
• Dereboy C, Senol S, Sener S. Adaptation of Conners' parent rating scale in Turkish. In: Proceedings 10th National Congress of Psychology. Ankara: 1998.
   Google Scholar
• Goyette CH, Conners CK, Ulrich RF. Normative data on revised Conners' parent and teacher rating scales. J Abnorm Child Psychol 1978; 6(2): 221–36.
   PubMed Web of Science ®Google Scholar
• Sener S, Dereboy C, Dereboy IF, Sertcan Y. Conners' Teacher Rating Scale Turkish version-I. Çocuk ve Gençlik Ruh Sağlığı Dergisi-Turkish Journal of Child and Adolescent Mental Health 1995; 2(3): 131–41. (Turkish).
   Google Scholar
• Owens EB, Hinshaw SP, Kraemer HC, Arnold LE, Abikoff HB, Cantwell DP, et al. Which treatment for whom for ADHD? Moderators of treatment response in the MTA. J Consult Clin Psychol 2003; 71(3): 540–52.
   PubMed Web of Science ®Google Scholar
• Moderators and mediators of treatment response for children with attention-deficit/hyperactivity disorder: The multimodal treatment study of children with attentiondeficit/hyperactivity disorder. Arch Gen Psychiatry 1999; 56(12): 1088–96.
   PubMed Web of Science ®Google Scholar
• Jensen PS, Hinshaw SP, Swanson JM, Greenhill LL, Conners CK, Arnold LE, et al. Findings from the NIMH multimodal treatment study of ADHD (MTA): implications and applications for primary care providers. J Dev Behav Pediatrics 2001; 22(1): 60–73.
   PubMed Web of Science ®Google Scholar
• Barkley RA. Comorbid disorders, adjustment, and subtyping. In Attention Deficit Hypeactivity Disorder: A Handbook for Diagnosis and Treatment. New York: Guilford Press Press; 2006. p. 184–219.
   Google Scholar
• Wigglesworth JM, Baum H. Iron dependent enzymes in the brain. In: Youdim MBH (editor). Brain Iron: Neurochemical and Behavioral Aspects. New York: Taylor and Francis; 1988. p. 25–66.
   Google Scholar
• Ashkenazi R, Ben-Shachar D, Youdim MBH. Nutritional iron deficiency and dopamine binding sites in the rat brain. Pharmacol Biochem Behav 1982; 17(Suppl. 1): S43–S7.
   PubMed Web of Science ®Google Scholar
• Swanson JM, Kinsbourne M, Nigg J, Lanphear B, Stefanatos GA, Volkow N, et al. Etiological subtypes of attention deficit hyperactivity disorder: brain imaging, molecular genetics and environmental factors and the dopamine hypothesis. Neuropsychol Rev 2007; 17(1): 39–59.
   PubMed Web of Science ®Google Scholar
• Carboni E, Silvagni A. Experimental investigations on dopamine transmission can provide clues on the mechanism of the therapeutic effect of amphetamine and methylphenidate in ADHD. Neural Plast 2004; 11(1/2): 77–95.
   Google Scholar