by Hamanishi, C, Matukura, N, Fujita, M, Tomihara, M, Tanaka, S
Published in Journal of spinal disorders (01.10.1994)

by Onda, M, Tokunaga, A, Nishi, K, Yoshiyuki, T, Shimizu, Y, Kiyama, T, Mizutani, T, Matsukura, N, Tanaka, N, Yamashita, K
Published in Japanese journal of surgery (01.05.1990)