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Development Of The Smile And Fear Of Strangers In The First Year Of Life (1963) on DVD

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Development Of The Smile And Fear Of Strangers In The First Year Of Life (1963) on DVD

Development Of The Smile And Fear Of Strangers In The First Year Of Life (1963);Shows the development of the smile and of the fear of strangers during the first year of life in identical and fraternal twins. Points out that identical twins show greater concordance. Infants become more selective as they grow, smiling only at familiar persons and being afraid of strangers.;

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