| A - ANATOMY 
 | Changed terms |  | Replaced-by | 
 
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| A05 - UROGENITAL SYSTEM A06 - ENDOCRINE SYSTEM
 A08 - NERVOUS SYSTEM
 A11 - CELLS
 
 
 
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| B - ORGANISMS 
 | Changed terms |  | Replaced-by | 
 
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| B01 - INVERTEBRATES B03 - BACTERIA
 B04 - VIRUSES
 B06 - PLANTS
 B07 - ARCHAEA
 
 
 
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| C - DISEASES 
 | Changed terms |  | Replaced-by | 
 
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| C01 - BACTERIAL INFECTIONS AND MYCOSES C04 - NEOPLASMS
 C07 - STOMATOGNATHIC DISEASES
 C09 - OTORHINOLARYNGOLOGIC DISEASES
 
 
 
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| D - CHEMICALS AND DRUGS 
 | Changed terms |  | Replaced-by | 
 
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| D02 - ORGANIC CHEMICALS D06 - HORMONES, HORMONE SUBSTITUTES, AND HORMONE ANTAGONISTS
 D08 - ENZYMES, COENZYMES, AND ENZYME INHIBITORS
 D12 - AMINO ACIDS, PEPTIDES, AND PROTEINS
 D24 - IMMUNOLOGIC AND BIOLOGICAL FACTORS
 
 
 
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| E - ANALYTICAL, DIAGNOSTIC AND THERAPEUTIC TECHNIQUES AND EQUIPMENT 
 | Changed terms |  | Replaced-by | 
 
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| E05 - INVESTIGATIVE TECHNIQUES 
 
 
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| F - PSYCHIATRY AND PSYCHOLOGY 
 | Changed terms |  | Replaced-by | 
 
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| F02 - PSYCHOLOGICAL PHENOMENA AND PROCESSES 
 
 
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| G - BIOLOGICAL SCIENCES 
 | Changed terms |  | Replaced-by | 
 
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| G06 - BIOCHEMICAL PHENOMENA, METABOLISM, AND NUTRITION G08 - REPRODUCTIVE AND URINARY PHYSIOLOGY
 G13 - GENETIC PHENOMENA
 G14 - GENETIC STRUCTURES
 
 
 
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| M - PERSONS 
 | Changed terms |  | Replaced-by | 
 
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| M01 - PERSONS 
 
 
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