Evaluating the Association Between Fibrinogen and Rotational Thromboelastometry and the Progression to Severe Obstetric Hemorrhage oleh Mary Yurashevich MD, MPH, Morgan Rosser MS, Maria Small MD, MPH, Chad Grotegut MD, MHS, MBA, Nancy Kota BSN, RNC-OB, John Toffaletti PhD, Terrence Allen MBBS, MHS, FRCA