ABCDE of prehospital ultrasonography:a narrative review
Rein Ketelaars 1,2* , Gabby Reijnders 3 , Geert-Jan van Geffen 1,2 , Gert Jan Scheffer 1 and Nico oogerwerf 1,2 Abstract Prehospital point-of-care ultrasound used by nonradiologists in emergency medicine is