1. Department of Emergency Medicine, Massachusetts General Hospital, Boston, MA 02114, USA
2. Department of Emergency Medicine, Lerdsin General Hospital, Krung Thep Maha Nakhon 10500, Thailand
3. Department of Emergency Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
4. Division of Emergency Ultrasound, Massachusetts General Hospital, Boston, MA 02114, USA
5. Division of General Internal Medicine, Department of Medicine, University of Calgary Cumming School of Medicine, 3330 Hospital Dr NW, Calgary, AB T2N 4N1, Canada
6. Emergency Medicine, College of Medicine, King Saud University, Medical City, Riyadh 11451, Saudi Arabia
7. Royal Surrey County Hospital NHS Foundation Trust, Guildford GU2 7XX, UK
8. University Geriatric Center, University of Antwerp, Leopold Street 26, 2000 Antwerp, Belgium
9. Belgian Ageing Muscle Society, 4000 Liege, Belgium