1. Anomalies and anatomic variants of the pancreas;Shirkhoda,2000
2. Adrenal glands, pancreas, and other retroperitoneal structures;Siegel,1999
3. Sonography of pancreatic disease in infants and children;Berrocal;Radiographics,1995
4. Pancreatic disease in children and young adults: evaluation with CT;Vaughn;Radiographics,1998
5. Gastrointestinal system;Keats,2001