title: PRELIMINARY OBSERVATIONS CONCERNING THE FINE STRUCTURE OF THE INTERVERTEBRAL DISC.
mesh_terms: D002467:Cell Nucleus; D003094:Collagen; D003593:Cytoplasm; D004583:Electrons; D006653:Histology; D007403:Intervertebral Disc; D008853:Microscopy; D008854:Microscopy, Electron
chemical_list: D003094:Collagen
keywords: CELL NUCLEUS; COLLAGEN; CYTOPLASM; HISTOLOGY; INTERVERTEBRAL DISK; MICROSCOPY, ELECTRON