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Smiling in photographs: childhood similarities between sexes become differences constant in adulthood

Mark DeSantis1, Philip J Mohan, R Kirk Steinhorst

  • 1WWAMI Medical Education Program, University of Idaho, P.O. Box 444207, Moscow, ID 83844-4207, USA. starfish@uidaho.edu

Psychological Reports
|December 14, 2005
PubMed

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