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2. Stage and delay in breast cancer diagnosis by race, socioeconomic status age and year;Richardson;Br J Cancer,1992
3. Race, class, and the quality of medical care;Ayanian;JAMA,1994
4. Socioeconomic factors and cancer incidence among blacks and whites;Baquet;J Natl Cancer Inst,1991
5. Racial & Ethnic Differences in Disease;Polednak,1989