1. Department of Emergency, Tangshan Gongren Hospital, Tangshan, Hebei, People’s Republic of China
2. Medical Imaging Department, Tangshan Gongren Hospital, Tangshan, Hebei, People’s Republic of China
3. Medical Imaging Department, Yanda Hospital, Langfang, Hebei, People’s Republic of China
4. Department of Stomatology, Tangshan Gongren Hospital, Tangshan, Hebei, People’s Republic of China
5. Department of Emergency, Luanzhou People’s Hospital, Tangshan, Hebei, People’s Republic of China
6. Department of Infectious Diseases, Zunhua People’s Hospital, Tangshan, Hebei, People’s Republic of China