Chang Hoon Hyun, Ho Jun Ryu, Jun Kyung Bang, Wang Seong Ryu, Ki Ik Kwon, Chang Soon Kang, Un Ho Ryoo

Korean Circ J.1988;18(3):419-430.   Published online 1988 September 30     DOI: http://dx.doi.org/10.4070/kcj.1988.18.3.419