Potential of Metformin to Improve Cardiac Risk in Postpartum Women with Gestational Diabetes oleh Oscar A. Viteri, Mary Alice Sallman, Pauline M. Berens, Pamela D. Berens, Farah H. Amro, Maria S. Hutchinson, Susan M. Ramin, Sean C. Blackwell, Jerrie S. Refuerzo, Judith. A. Smith