title: Toward understanding mutual antipathies in childhood and adolescence.
authors.affiliation: Institute of Child Development, University of Minnesota, Minneapolis, USA.
authors.forename: Willard W
authors.initials: WW
authors.lastname: Hartup
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior / Q000523:psychology*; D002648:Child; D002652:Child Behavior / Q000523:psychology*; D005260:Female; D006252:Hate; D006801:Humans; D007398:Interpersonal Relations; D008297:Male