A1 (Body Regions) |
5 |
A2 (Musculoskeletal System) |
1 |
A5 (Urogenital System) |
2 |
A7 (Cardiovascular System) |
1 |
A8 (Nervous System) |
7 |
A10 (Tissues) |
1 |
A11 (Cells) |
17 |
A13 (Animal Structures) |
3 |
A15 (Hemic and Immune Systems) |
1 |
A16 (Embryonic Structures) |
2 |
B1 (Eukaryota) |
10 |
B3 (Bacteria) |
14 |
B4 (Viruses) |
1 |
B5 (Organism Forms) |
1 |
C1 (Bacterial Infections and Mycoses) |
15 |
C2 (Virus Diseases) |
1 |
C4 (Neoplasms) |
5 |
C5 (Musculoskeletal Diseases) |
10 |
C6 (Digestive System Diseases) |
1 |
C7 (Stomatognathic Diseases) |
1 |
C8 (Respiratory Tract Diseases) |
10 |
C9 (Otorhinolaryngologic Diseases) |
8 |
C10 (Nervous System Diseases) |
29 |
C11 (Eye Diseases) |
6 |
C12 (Male Urogenital Diseases) |
4 |
C13 (Female Urogenital Diseases and Pregnancy Complications) |
7 |
C14 (Cardiovascular Diseases) |
9 |
C15 (Hemic and Lymphatic Diseases) |
2 |
C16 (Congenital, Hereditary, and Neonatal Diseases and Abnormalities) |
6 |
C17 (Skin and Connective Tissue Diseases) |
6 |
C18 (Nutritional and Metabolic Diseases) |
1 |
C19 (Endocrine System Diseases) |
1 |
C20 (Immune System Diseases) |
3 |
C23 (Pathological Conditions, Signs and Symptoms) |
27 |
C24 (Occupational Diseases) |
1 |
C25 (Substance-Related Disorders) |
1 |
C26 (Wounds and Injuries) |
16 |
D1 (Inorganic Chemicals) |
2 |
D2 (Organic Chemicals) |
2 |
D3 (Heterocyclic Compounds) |
4 |
D4 (Polycyclic Compounds) |
2 |
D5 (Macromolecular Substances) |
4 |
D6 (Hormones, Hormone Substitutes, and Hormone Antagonists) |
9 |
D8 (Enzymes and Coenzymes) |
8 |
D12 (Amino Acids, Peptides, and Proteins) |
89 |
D13 (Nucleic Acids, Nucleotides, and Nucleosides) |
3 |
D20 (Complex Mixtures) |
6 |
D23 (Biological Factors) |
44 |
D26 (Pharmaceutical Preparations) |
2 |
D27 (Chemical Actions and Uses) |
5 |
E1 (Diagnosis) |
16 |
E2 (Therapeutics) |
27 |
E3 (Anesthesia and Analgesia) |
2 |
E4 (Surgical Procedures, Operative) |
16 |
E5 (Investigative Techniques) |
36 |
E6 (Dentistry) |
5 |
E7 (Equipment and Supplies) |
2 |
F1 (Behavior and Behavior Mechanisms) |
10 |
F2 (Psychological Phenomena and Processes) |
6 |
F3 (Mental Disorders) |
4 |
F4 (Behavioral Disciplines and Activities) |
2 |
G1 (Physical Phenomena) |
14 |
G2 (Chemical Phenomena) |
15 |
G3 (Metabolic Phenomena) |
5 |
G4 (Cell Physiological Phenomena) |
12 |
G5 (Genetic Phenomena) |
27 |
G6 (Microbiological Phenomena)? |
1 |
G7 (Physiological Phenomena) |
5 |
G8 (Reproductive and Urinary Physiological Phenomena) |
5 |
G9 (Circulatory and Respiratory Physiological Phenomena)? |
3 |
G11 (Musculoskeletal and Neural Physiological Phenomena) |
7 |
G12 (Immune System Phenomena) |
4 |
G15 (Plant Physiological Phenomena) |
3 |
G16 (Biological Phenomena) |
8 |
G17 (Mathematical Concepts) |
1 |
H1 (Natural Science Disciplines) |
3 |
I1 (Social Sciences) |
1 |
I2 (Education) |
2 |
I3 (Human Activities) |
1 |
J1 (Technology, Industry, and Agriculture) |
11 |
J2 (Food and Beverages) |
2 |
K1 (Humanities) |
2 |
L1 (Information Science) |
6 |
M1 (Persons) |
8 |
N1 (Population Characteristics) |
3 |
N2 (Health Care Facilities, Manpower, and Services) |
8 |
N3 (Health Care Economics and Organizations) |
1 |
N4 (Health Services Administration)? |
2 |
N5 (Health Care Quality, Access, and Evaluation) |
4 |
N6 (Environment and Public Health) |
21 |
Z1 (Geographic Locations) |
2 |