RT Journal Article SR Electronic T1 Characteristics Associated With Hospitalization for Croup JF AAP Grand Rounds JO AAP Grand Rounds FD American Academy of Pediatrics SP 39 OP 39 DO 10.1542/gr.45-4-39 VO 45 IS 4 YR 2021 UL http://aapgrandrounds.aappublications.org/content/45/4/39.abstract AB