
1	Two cases of Sacral Agenesis Kwang Hoe Kim, Il Yong Choi, Kil Hong Lim, Chul Soo Sung J Korean Orthop Assoc.1980;15(2):361-365. Published online 2019 April 24 DOI: http://dx.doi.org/10.4055/jkoa.1980.15.2.361