Mothers have to be there to be left.
D001010:Anxiety, Separation / Q000523:psychology*; D002648:Child; D002657:Child Development; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D009034:Mother-Child Relations; D009035:Mothers / Q000523:psychology; D014886:Weaning