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2. Anticipatory guidance;Brazelton;Pediatr Clin N Am,1975
3. Expert Panel on the 18-Month Well Baby Visit. Getting it right at 18 months...making it right for a lifetime. Report of the Expert Panel on the 18 Month Well Baby Visit Toronto Ontario Children's Health Network, Ontario College of Family Physicians 2005 (Version current at October 27, 2008).
4. Early Years Study: Reversing the Real Brain Drain;McCain,1999