 An independent data monitoring committee has been established to review the progress of the study. The data monitoring committee will meet periodically to review trial results, monitor patient safety and study progress. The data monitoring committee will meet when approximately 25, 50 and 75 of the patients have been enrolled and delivered. However, this committee will be responsible for deciding whether more or less frequent meetings are necessary. The data monitoring committee will be completely independent of the study group and will not include any member of the research team or any individual with a conflict of interest. 