Krijnen, Matthijs R, Daniel Mensch, Jaap H van Dieen, Paul I Wuisman, and Theo H Smit. 2006. “Primary Spinal Segment Stability With a Stand-Alone Cage: In Vitro Evaluation of a Successful Goat Model”. Acta Orthopaedica 77 (3):454-61. https://doi.org/10.1080/17453670610046398.