6Simanovsky N, Hiller N. Importance of sonographic detection of enlarged abdominal lymph nodes in children. J Ultrasound Med, 2007, 26(5):581-584.
7Puylaert JB. Ultrasonography of the acute abdomen: gastrointestinal conditions. Radiol C lin North Am, 2003, 41(6): 1227-1242.
8Vayner N, Coret A, Polliack G, et al. Mesenteric lymphadenopathy in children examined by US for chronic and/or recurrent abdominal pain. Pediatr Radiol, 2003, 33(12):864-867.