Published on in Vol 8, No 9 (2020): September
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/19110, first published
.
1 Department of Ultrasound, Xuzhou Children’s Hospital, Xuzhou Medical University, Xuzhou, China
2 Department of Emergency, Xuzhou Central Hospital, Xuzhou, China
3 Dipartimento di Biomedicina, Universita di Torino, Torino, Italy