Treat first what kills first in severe trauma Marc Maegele Do we need a tourniquet in major hemorrhage? Michael Reade Prehospital resuscitation: fluids, blood, and beyond Dietmar Fries Evolving role of aerial transfers Michael R Pinsky In-flight emergencies: is there a doctor on board? Heatherlee Bailey POCUS in the dyspneic patient Roman Skulec How to ventilate in a constrained environment Jean-Christophe Richard