Assertion: pelvic hematoma | /r/HasProperty | mean age
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Source sentences:
text: In contrast, a group from Toronto reported a single-center experience in a series of 27 children (mean age, 7 years) sustaining blunt duodenal injuries and treated over a 10-year period.110 Thirteen children had duodenal perforations (mean age, 9 years), and 14 sustained duodenal hematomas (mean age, 5 years).