Write a report giving a critical appraisal of the case control study by Shaw et al., on "Risks of orofacial clefts in children born to women using multivitamins containing folic acid periconceptionally. The Lancet 1995; 345: 393-396” -- 2
In your report pay attention to the following. 1. Describe the design features that identify this as a case control study and discuss why the authors chose this...
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