title: On attachment.
authors.affiliation: Department of Psychology, Harvard University, Cambridge, MA 02138, USA.
authors.forename: J
authors.initials: J
authors.lastname: Kagan
mesh_terms: D000818:Animals; D002657:Child Development; D015986:Confounding Factors, Epidemiologic; D006801:Humans; D007223:Infant; D009769:Object Attachment; D002679:Pan troglodytes / Q000523:psychology; D011581:Psychological Tests; D015203:Reproducibility of Results; D013694:Temperament