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Walk the evidence base by book and chapter — the raw source passages that ground Ask, Differential, and the rest.

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contentuptodate· Content· item f19_34_20002

©2013 UpToDate ® Print Email Bilateral grade I IVH Sagittal ultrasound scan showing areas of increased echogenicity (arrows) typical of Grade I IVH. Courtesy of the Department of Diagnostic Imaging, Texas Children's Hospital.