Sheih C P, Li Y W, Liao Y J, Chiang C D
Department of Pediatric Nephrology, Taipei Municipal Women and Children's Hospital, Republic of China.
J Clin Ultrasound. 1996 Nov-Dec;24(9):533-5. doi: 10.1002/(SICI)1097-0096(199611/12)24:9<533::AID-JCU8>3.0.CO;2-O.