REFERENCES
- Burinicardi FC. Schwartz's Principles of Surgery. 9th ed. Mc Graw Hill Inc.; 2009:1142–1143.
- Kotecha R, Toledo-Pereyra LH. Beyond the radiograph: radiological advances in surgery. J Invest Surg. 2011;24(5):195–198.
- Rozycki GS. Surgeon-performed ultrasound: its use in clinical practice. Ann Surg. 1998;228(1):16–28.
- Kell MR, Aherne NJ, Coffey C, Emergency surgeon-performed hepatobiliary ultrasonography. Br J Surg. 2002;89:1402–1404.
- Newman PG, Rozycki GS. The history of ultrasound. Surg Clin North Am. 1998;78(2):179–197.
- Williams RJ, Windsor AC, Rosin RD, Ultrasound scanning of the acute abdomen by surgeons in training. Ann R Coll Surg Engl. 1994 Jul;76(4):228–233.
- Gallagher PV, Elliott ST, Charnley R. Appraising surgeons learning sonography: measuring measurement variability. J Clin Ultrasound. 2003 Sep;31(7):364–368.
- Ballard RB, Rozycki GS. The use of ultrasound in the acute setting. Surg Clin North Am. 1998;78(2):337–365.
- Jakimowicz JJ, Rutten H, Jürgens PJ, Comparison of operative ultrasonography and radiography in screening of the common bile duct for calculi. World J Surg. 1987 Oct;11(5):628–634.
- VanBibber M, Zuckerman RS, Finlayson SR. Rural versus urban inpatient case-mix differences in the US. J Am Coll Surg. 2006 Dec;203(6):812–816.