Song H Y, Jin Y H, Lee H K, Sung K B
Department of Diagnostic Radiology, Asan Medical Center, University of Ulsan College of Medicine, Poongna-Dong, Songpa-Ku, Seoul, Korea.
J Vasc Interv Radiol. 1995 Jul-Aug;6(4):647-50. doi: 10.1016/s1051-0443(95)71153-8.