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Each researcher was instructed to randomly select two stores from each of the six retail categories in each audit locality

[140] By the late 19th century, race discrimination was furthered by theories of scientific racism, which held that white people were the 'superior race' and that Black people were less intelligent than white people

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Kurtalic N, Hadzigrahic N, Tahirovic H, Sijercic N: [Quality-of-life of adolescents with acne vulgaris]

Statistical analyses Complex sampling designs need to be considered to make our study population nationally representative