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}}</ref> although he had no evidence to support his speculation.  He repeated this idea in two books that were published in 1992, "''The Status of Health of Blacks in the United States of America: A Perspective for Improvement" Improvemenn'' and "''The African American Health Book" '' and again in "AIDS: The Expanding Epidemic: What the Public Needs to Know: A Multi-Cultural Overview" , published in 1994.<ref>{{REFjournal