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Knol, Mirjam J; Egger, Matthias; Scott, Pippa; Geerlings, Mirjam I; Vandenbroucke, Jan P (2009). When one depends on the other: reporting of interaction in case-control and cohort studies. Epidemiology, 20(2), pp. 161-6. Baltimore, Md.: Wolters Kluwer Health, Lippincott Williams & Wilkins 10.1097/EDE.0b013e31818f6651
Knol, Mirjam J; Vandenbroucke, Jan P; Scott, Pippa; Egger, Matthias (2008). What do case-control studies estimate? Survey of methods and assumptions in published case-control research. American journal of epidemiology, 168(9), pp. 1073-81. Cary, N.C.: Oxford University Press 10.1093/aje/kwn217