Research in the Michael A. Rosen Lab primarily focuses on patient safety and simulation-based health care training and technology. Recent work provided examples of how human factors experts can collaborate with health care professionals and simulationists (experts in the design and implementation of simulation) to use contemporary simulation to improve health care delivery. Another recent study examined the anesthesia practice at two tertiary care hospitals in Sierra Leone, West Africa, where anesthesia is associated with high mortality rates. We identified gaps in the application of internationally recommended anesthesia practices at both hospitals, likely caused by lack of available resources.