Trials conducted in the United States

Your textbook presents three major randomized trials conducted in the United States, pages 168-174. Select any one of these, describe the trial in detail, describe its purpose, and explain what can be learned from the trial.
Your response must be at least 300 words in length. You are required to use at least one outside source. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying APA citations.