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  1. 2019New_Mesh_Tree_Hierarchy.txt 
    https://www.nlm.nih.gov/.../download/2019New_Mesh_Tree_Hierarchy.txt
    ... 566.500 Panniculitis, Nodular Nonsuppurative C17.800.600 Photosensitivity Disorders C17.800.600.325 Dermatitis, Photoallergic C17. ... 890 Spectrum Analysis, Raman E05.196.867.917 Sun Protection Factor E05.196.867.945 Terahertz Spectroscopy ...