Accepted for Publication: April 3, 2014.
Published Online: August 4, 2014. doi:
Study concept and design: Shaikh, Craig.
Acquisition, analysis, or interpretation of data: All authors.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Shaikh, Craig, Rovers, Shope.
Administrative, technical, or material support: Shaikh, Craig.
Study supervision: Shaikh, Rovers, Gardikis, Hoberman, Montini.
Conflict of Interest Disclosures: None reported.
Additional Contributions: Goerge Vaos, MD, and Aggeliki Kotoula, MD (Department of Pediatric Surgery, Alexandroupolis University Hospital, Democritus University of Thrace School of Medicine), Cristina Prat, MD (Department of Pediatrics, Germans Trias i Pujol University Hospital, Universitat Autònoma de Barcelona), Alberto Biggi, MD (Nuclear Medicine Service, Croce General Hospital, Cueno, Italy), and Mohamed Zaki, MD (Pediatric Department, Farwania Hospital, Safat, Kuwait), assisted with assembly of the database. They received no compensation for this contribution.