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4 results
  1. NLM Classification 2013 Edition . NLM Technical Bulletin. 2013 May–Jun 
    https://www.nlm.nih.gov/pubs/techbull/mj13/mj13_classification.html
    ... 17 Cell Physiological Processes -- QU 375 18 Chemical Safety 19 Chitosan -- QU 83 20 Community Integration 21 Controlled Substances -- ...
  2. pdf2018MeShTreeHierarchy.pdf 
    https://www.nlm.nih.gov/mesh/2018/download/2018MeShTreeHierarchy.pdf
    ... 078.139...........................................Chitin D05.750.078.139.500...........................................Chitosan D05.750.078.280...........................................Collagen D05.750.078. ...
  3. pdf2017MeshTreesWithChangesShown.pdf 
    https://www.nlm.nih.gov/.../2017MeshTreesWithChangesShown.pdf
    ... 200 Troponin I Troponin T Polymers Biopolymers Chitin Chitosan Collagen Fibrillar Collagens Collagen Type I Collagen Type ... Glyceraldehyde Glyceraldehyde 3-Phosphate Polysaccharides Alginates Carrageenan Chitin Chitosan Ficoll Fructans Inulin Fungal Polysaccharides Galactans Agar Glucans ...
  4. pdf2016MeshTree.pdf 
    https://www.nlm.nih.gov/mesh/2016/download/2016MeshTree.pdf
    ... 078.139...........................................Chitin D05.750.078.139.500...........................................Chitosan D05.750.078.280...........................................Collagen D05.750.078. ...