TY - JOUR AU - Meisel, H. J. DO - doi:10.1302/1358-992X.2018.15.044 UR - https://doi.org/10.1302/1358-992X.2018.15.044 TI - THE BIOLOGY- BONE GRAFT VERSUS SUBSTITUTES FOR SPINAL FUSION T2 - Orthopaedic Proceedings VL - 100-B IS - SUPP_15 PY - 2018 SP - 44 EP - 44 ER -