Dr. Allison Lankford is an Assistant Professor in the Department of Obstetrics, Gynecology, and Reproductive Services at the University of Maryland. She is a Maternal Fetal Medicine and Critical Care physician at the University of Maryland Medical Center. Dr. Lankford presents a lecture entitled "Gas Exchange and Pulmonary Ventilation in the Critically- Ill Obstetric Patient" as part of the DC5 Lecture series.