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• Use “ “ for phrases o [ “pediatric abdominal pain” ] • Use – to remove results with certain terms o [ “abdominal pain” –pediatric ] • Use OR to account for alternate terms o [teenager OR adolescent ]
施救者站在患者身后，手臂环抱患者腹部。将手放在胸骨和脐中间，一手握拳，另一手包住此拳头，此时将双手向内向上挤压。
