PROJECT SUMMARY In this application, we detail Brown University/Women & Infants Hospital of Rhode Island (WIH) experience and capabilities that will enable us to be a productive, collaborative, and collegial Center in the NICHD Maternal-Fetal Medicine Units (MFMU) Network. This has been, and will remain, a core mission of the Brown/WIH MFM Division, Brown Ob-Gyn Department, and WIH in general. We pledge to use our established and in-place infrastructure and personnel, and to grow it and modify it as necessary, to participate with the NICHD to propose and perform clinical trials and observational studies in a timely, efficient manner and with the highest standards of data acquisition and quality. Further, we very much look forward to collaborating with investigative teams outside of the Network and welcome the inclusiveness of the new Network operational structure. We will participate in all Network studies and will prioritize Network studies over other studies, including other NIH-funded studies, for subject recruitment at our Center.