RT Journal Article SR Electronic T1 US/MRI vs CT for Diagnosing Appendicitis JF AAP Grand Rounds JO AAP Grand Rounds FD American Academy of Pediatrics SP 17 OP 17 DO 10.1542/gr.32-2-17 VO 32 IS 2 YR 2014 UL http://aapgrandrounds.aappublications.org/content/32/2/17.abstract AB