Ara Festekjian, MD, MS a, c, ⁎
, Jeanine E. Hall, MD a, c
, Ronen Zipkin, MD b, c
, Jared Schiff, MD a, c
, Phung K. Pham, PhD a, Levon Mesropyan, MD d
, Cynthia Araradian, MD e, 1
Author Cynthia Araradian completed the work as a visiting medical student from Drexel University College of Medicine, currently a surgical resident at Oregon Health Sciences University.
, Alan L. Nager, MD, MHA a, c
, Todd P. Chang, MD, MAcM a, c 
a Department of Pediatrics, Division of Emergency and Transport Medicine, Children's Hospital Los Angeles, 4650 Sunset Blvd, Mailstop 113, Los Angeles, CA 90027, United States of America
b Department of Pediatrics, Division of Hospital Medicine, Children's Hospital Los Angeles, 4650 Sunset Blvd, Mailstop 94, Los Angeles, CA 90027, United States of America
c Keck School of Medicine, University of Southern California, Los Angeles, CA, United States of America
d University of California Los Angeles, Burbank Pediatrics, 2625 W. Alameda, Suite 300, Burbank, CA 9150, United States of America
e Oregon Health Sciences University*, 3181 S.W. Jackson Park Road, Portland, OR 97239, United States of America