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I have no conflicts of interest to disclose.
Funding
This research received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors.
Additional information
Notes on contributors
Claire Hart
Dr. Claire Hart is a counseling psychologist in private practice in Johannesburg, South Africa. She competed her PhD at the University of the Witwatersrand in the area of Psychoanalytic Psychotherapy and Practice. Claire has a special interest in the potential developmental functions of siblings in psychoanalytic theory and practice.