Thijs Grunhagen et al., Nutrient supply and intervertebral disc metabolism, J Bone Joint Surg Am, 2006 Apr;88 Suppl 2:30-5.
Christopher M De Geer et al., Intervertebral Disk Nutrients and Transport Mechanisms in Relation to Disk Degeneration: A Narrative Literature Review, J Chiropr Med. 2018 Jun; 17(2): 97–105.