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3 results
  1. 2019New_Mesh_Tree_Hierarchy.txt 
    https://www.nlm.nih.gov/.../download/2019New_Mesh_Tree_Hierarchy.txt
    ... 249 Ovule A18.024.249.500.249.500 Pollen A18.024.249.500.249.500.500 Pollen Tube A18.024.249.500.624 Inflorescence A18. ... D26.310.500 Multi-Ingredient Cold, Flu, and Allergy Medication s D26.310.625 Piperacillin, Tazobactam Drug Combination ...
  2. SU 
    https://www.nlm.nih.gov/.../sn_current.tgz#2023AA/SU
    ... parts are included here as well. EX: Aloe; Pollen; Helianthus species HL: {isa} Eukaryote UI: T098 STY: ...
  3. pdfNLM Technical Bulletin, no.93-104 
    https://www.nlm.nih.gov/.../nlmarchives/techbull/93-104-1977.pdf
    ... AGENTS (exploded) D23 - ANTITUSSIVE AGENTS (exploded) D24 - ALLERGENS POLLEN PULMONARY SURFACTANT TUBERCULOSIS VACCINES BCG VACCINE El - Respiratory ... 2. Health education - U. S. - congresses 3. Venereal Diseases - prevention & control - congresses I. Catterall, Robert Duncan, ed. n. ...