1. Classic Studies in Epidemiology 2. Preliminaries 3. Prevalence Studies 4. Cohort Studies 5. Populations 6. Effect Modification in Cohort Studies 7. Standardization in Cohort Studies 8. Confounding in Cohort Studies - Part I 9. Confounding in Cohort Studies - Part II 10. Bias in Cohort Studies 11. Randomized Trials 12. Case-Control Studies - Part I 13. Case-Control Studies - Part II 14. Ecologic Studies 15. Screening in Populations