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https://news.cornell.edu/stories/2010/06/moms-favoritism-tied-depression-grown-children
Study: Moms' favoritism tied to depression in adulthood | Cornell Chronicle
Whether mom's golden child or her black sheep, siblings who sense that their mother consistently favors or rejects one child over others are more likely to show depressive symptoms as adults. (June 24, 2010)
news.cornell.edu
엄마의 편애가 자녀의 우울증에 관련 있다.