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Fig. 2. —Bar graph shows annual number of abdominal and pelvic CT examinations performed at St. Louis Children's Hospital (Mallinckrodt Institute of Radiology, St. Louis, MO) on patients younger than a given age, for years 1996-1999 (bars left to right in each group) (McAlister WH, personal communication). Number of pediatric CT examinations almost doubled between 1996 and 1999.

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