Acellular, bioresorbable, ultra-purified alginate gel implantation for intervertebral disc herniation: Phase 1/2, open-label, non-randomized clinical trials

K Katsuhisa Yamada T Takahiko Hyakumachi T Terufumi Kokabu K Kenichiro Maeda T Toshiyuki Isoe K Khin Khin Tha Y Yoichi M. Ito T Takashi Ohnishi T Tsutomu Endo (Graduate School of Agricultural and Life Sciences, Department of Animal Resource Sciences, The University of Tokyo) D Daisuke Ukeba H Hiroyuki Tachi Y Yuichiro Abe Y Yoko Ishikawa N Nozomi Yokota T Takashi Miyakoshi O Osamu Sugita N Norihiro Sato N Norimasa Iwasaki H Hideki Sudo