Question: 1. In a case-control study about heart defects in babies, 600 newborns were studied (300 cases and 300 controls). A total of 190 babies who

1. In a case-control study about heart defects in babies, 600 newborns were studied (300 cases and 300 controls). A total of 190 babies who had heart defects were born to mothers who used retinoic acid to treat acne while they were pregnant, and 210 babies without heart defects were born to mothers who did not use retinoic acid while pregnant. Complete the 2 x 2 table for this study. Cases Controls (Heart defects) (No heart defects) Retionoic acid 190 No retinoic acid 210 Total 300 300

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