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. 2012 Nov;26(11):785–790. doi: 10.1155/2012/507174

TABLE 8.

Patients who underwent an abdominal ultrasound

Decline, %
Indication Before After
Abdominal pain (n=83) 32.5 16.9
Rectal bleeding (n=59) 32.2 22.0
Fecal occult blood test positive (n=48) 27.1 18.7
Iron deficiency (n=40) 32.5 12.2