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| Case-Control Studies Case-Base Studies | Case-Comparison Studies | Case-Referent Studies | Matched Case-Control Studies | Nested Case-Control Studies | Case Control Studies | Case-Compeer Studies | Case-Referrent Studies | Case Base Studies | Case Comparison Studies Studies which start with the identification of persons with a disease of interest and a control (comparison, referent) group without the disease. The relationship of an attribute to the disease is examined by comparing diseased and non-diseased persons with regard to the frequency or levels of the attribute in each group. | |
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