RT Journal Article SR Electronic T1 Non-Postoperative Pericardial Effusions in Children JF AAP Grand Rounds JO AAP Grand Rounds FD American Academy of Pediatrics SP 7 OP 7 DO 10.1542/gr.40-1-7 VO 40 IS 1 YR 2018 UL http://aapgrandrounds.aappublications.org/content/40/1/7.abstract AB