title: SMILING IN BLIND INFANTS AND THE ISSUE OF INNATE VS. ACQUIRED.
mesh_terms: D001766:Blindness; D000013:Congenital Abnormalities; D004644:Emotions; D005149:Facial Expression; D005826:Genetics, Medical; D006801:Humans; D007223:Infant; D012904:Smiling
keywords: ABNORMALITIES; BLINDNESS; EMOTIONS; FACIAL EXPRESSION; GENETICS, HUMAN; INFANT