6Medoff-Cooper B,Carey WB,Medevitt SC. The early infancy temperament questionnaire. Journal of Development and Behavioral Pediatrics, 1993,14(4) : 230-235
7Chess S. Individuality in children, its importance to the pediatrician. The Journal of Pediatrics, 1966,69(4) : 676-684
8Carey WB, Mcdevitt SC. Revision of the infant temperament questionnaire. Pediatrics, 1978,61 : 735-739
9Leeb RT,Rejskind FG. Here's looking at you, kid! A longitudinal study of perceived gender differences in mutual gaze behavior in young infants. Sex Roles,2004,50(1): 1-14
