Wan Y L, Hsieh M L, Hsueh C, Shum H C, Kea C L
Department of Diagnostic Radiology, Chang Gung Medical Center at Linkou, Chang Gung College of Medicine and Technology, Taiwan, Republic of China.
J Ultrasound Med. 1996 Jun;15(6):483-5. doi: 10.7863/jum.1996.15.6.483.