Point-of-care brain magnetic resonance imaging in children with head trauma (BRAINCHILD): Protocol for a prospective observational cohort study - Pradip P. Chaudhari; Kayla Guzman; Jason M. Toliao; Samantha Lozano; Christina Lee; Payal Shah; Frank Gonzalez; Bradley J. De Souza; Ryan Spurrier; Peter A. Chiarelli; Jonathan D. Santoro; Ramón Durazo-Arvizu; et al. (PLoS ONE, 2026)