20 A Description of Pediatric Frequent Users of Emergency Department ResourcesCastillo, E.M.; Chan, T.C.; Vilke, G.M.; Hsia, R.Y.; Ishimine, P.; Shah, S.; Kapoor, K.; Brennan, J.J. · Annals of Emergency Medicine · 2015

141 Characteristics of Frequent Users of Emergency Departments With Pain-Related DiagnosesCastillo, E.M.; Morgan, A.O.; Vilke, G.M.; Killeen, J.P.; Hsia, R.Y.; Brennan, J.J. · Annals of Emergency Medicine · 2016

30 Association of Emergency Department and Hospital Operation Characteristics on Elopements and Length of StayD.A. Handel; R. Fu; E. Vu; J.J. Augustine; R.Y. Hsia; C.M. Shufflebarger; B. Sun · 2012