Example of case control study (risk factor and disease/outcome)-
Ans. is 'D' i.e., All of the above o Important risk factors and their outcome&ftiiseases which have been studied by case-control study are Cigarette smoking and lung cancer. Maternal smoking and congenital malformation, Radiation and leukemia. OCP used and hepatocellular carcinoma. Herpes-simplex and Bells palsy. Artificial sweeteners and bladder cancer. DES exposure in fetal life and vaginal adenocarcinoma. OCP use and thromboembolic disease. Thalidomide use in pregnancy and teratogenicity.
Maternal smoking and congenital malformation
Vaginal adenocarcinoma and intrauterine exposure to DES
Thalidomide exposure and teratogenicity
All of the above