Prepare a brief summary of the article using POWERPOINT, including 1-2 slides each for background, study objectives/hypothesis, methods, results and conclusions.  Be sure to provide details on the human population of interest in the study.  Include the exposure assessment method(s) used in the study, and note the strengths and limitations of the method(s) to address the study question.  Limit your presentation to 12 slides.  Include a full citation for the article on the title page of the presentation. Remember to include your name on the title page of the presentation.