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Algorithmic approach to the children with acute abdominal pain requiring urgent management. RLQ: right lower quadrant, RUQ: right upper quadrant, US: ultrasonography, CT: computed tomography, CBC: complete blood count, UA: urinalysis, AST: aspartate aminotransferase, ALT: alanine aminotransferase, GGT: γ-glutamyltransferase.
