Therapeutic or Preventive Procedure
Qualitative Concept
Nucleic Acid, Nucleoside, or Nucleotide
Neoplastic Process
Functional Concept
Disease or Syndrome
Activity
Nucleic Acid, Nucleoside, or Nucleotide,Pharmacologic Substance
Chemical Viewed Functionally
Temporal Concept
Body Part, Organ, or Organ Component
Pharmacologic Substance
Natural Phenomenon or Process
Spatial Concept
Funct
Patient or Disabled Group
Finding
Intellectual Product
Element, Ion, or Isotope
Injury or Poisoning,Pathologic Function
Biomedical Occupation or Discipline
Health Care Activity
Virus
Organic Chemical
Amino Acid, Peptide, or Protein
Pathologic Function
Quantitative Concept
Amino Acid, Peptide, or Protein,Hormone,Pharmacologic Substance
Individual Behavior
Diagnostic Procedure
Research Activity
Patient or Disabled
Inorganic Chemical,Pharmacologic Substance
Clinical Attribute
Human-caused Phenomenon or Process
Mental Process
Organism Function
Occupational Activity
Anatomical Abnormality,Pathologic Function
Laboratory Procedure
Organism Attribute
Medical Device
Anatomical Abnormality,Disease or Syndrome
Manufactured Object
Organic Chemical,Pharmacologic Substance
Pharmacologic Substance,Vitamin
Idea or Concept
Social Behavior
Substance
Sign or Symptom
Amino Acid, Peptide, or Protein,Hormone
Receptor
Cell
Biologically Active Substance,Nucleic Acid, Nucleoside, or Nucleotide
Neoplastic Proce
Invertebrate
Pathologic Function,Sign or Symptom
Sign or
Cell Function
Hazardous or Poisonous Substance,
Functional Concept,Intellectual Product
Immunologic Factor,Pharmacologic Substance
Population Group
Quantitative 
Amino Acid, Peptide, or Protein,Enzyme
Immunologic Factor
Biologically Active Substance
Gene or Genome
Physiologic Function
Acquired Abnormality
Age Group
Phenomenon or Process
Anatomical Structure
Indicator, Reagent, or Diagnostic Aid
Molecular Biology Research Technique,Therapeutic or Preventive Procedure
Tissue
Food
Biologically Active Substance,Element, Ion, or Isotope,Hazardous or Poisonous Substance