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  1. <Medical Topics
    Allergy and Immunology
    Biology of the Immune System
    • Molecular Components of the Immune System
      • Acute Phase Reactants
        • Acute phase reactants references
      • Antibodies
        • Antibody structure
        • Antibody classes
        • Antibodies references
      • Cytokines
        • Chemokines
        • Colony-stimulating factors
        • Interferons (IFNs)
        • Interleukins (ILs)
        • Transforming growth factors (TGF)
        • Tumor necrosis factors (TNFs)
        • Cytokines references
    • Overview of the Immune System
      • Innate immunity
      • Acquired immunity
      • General references
      • Immune Response
        • Activation
        • Regulation
        • Resolution
        • Immune response references
      • Geriatrics Essentials
        • Geriatrics essentials references
    • Cellular Components of the Immune System
      • Antigen-Presenting Cells
        • Antigen-presenting cells references
      • Lymphocytes
        • B cells
        • T cells
        • Lymphocytes references
      • Mast Cells
        • Mast cells references
      • Natural Killer (NK) Cells
        • Natural killer cells references
      • Polymorphonuclear Leukocytes
        • Neutrophils
        • Eosinophils
        • Basophils
        • Polymorphonuclear leukocytes references
    • Human Leukocyte Antigen (HLA) System
      • References
    • Complement System
      • Complement activation
      • Complement deficiencies and defects
      • Biologic activities of complement
      • References
    • Immunotherapeutics
      • Monoclonal antibodies
      • Fusion proteins
      • Soluble cytokine receptors
      • Recombinant cytokines
      • Small-molecule mimetics
      • Cellular therapies
      • References
    Allergic, Autoimmune, and Other Hypersensitivity Disorders
    • Allergic Rhinitis
      • Symptoms and Signs
      • Diagnosis
        • Diagnosis reference
      • Treatment
      • Prevention
        • Avoidance of triggers
        • Desensitization
      • Key Points
    • Food Allergy
      • General reference
      • Etiology
        • Oral allergy syndrome (pollen food allergy syndrome)
        • Eosinophilic gastroenteropathy
        • Alpha-gal syndrome
        • Etiology references
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Immunotherapy for desensitization
        • Monoclonal antibodies
        • Treatment references
      • Prevention
        • Prevention references
      • Key Points
      • More Information
    • Anaphylaxis
      • General reference
      • Etiology
      • Pathophysiology
        • Anaphylactoid reactions
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Epinephrine
        • Other treatments
        • Treatment references
      • Prevention
      • Key Points
    • Angioedema
      • Acute angioedema
      • Chronic angioedema
      • Hereditary and acquired angioedema
      • References
      • Symptoms and Signs
      • Diagnosis
      • Treatment
      • Key Points
    • Hereditary and Acquired C1 Inhibitor Deficiency or Dysfunction
      • Hereditary angioedema
      • Acquired C1 inhibitor deficiency
      • Triggers
      • General reference
      • Symptoms and Signs
      • Diagnosis
        • Diagnosis reference
      • Treatment
      • Treatment references
      • Prevention
        • Long-term prophylaxis
        • Short-term prophylaxis
        • Prevention references
      • Key Points
    • Overview of Allergic and Atopic Disorders
      • Classification of Hypersensitivity Reactions
        • Type I hypersensitivity reactions
        • Type II hypersensitivity reactions
        • Type III hypersensitivity reactions
        • Type IV hypersensitivity reactions
      • Etiology
        • Allergens
      • Pathophysiology
      • Symptoms and Signs
      • Diagnosis
        • Nonspecific tests
        • Specific tests
        • Diagnosis reference
      • Treatment
        • Emergency treatment
        • Environmental control
        • Antihistamines
        • Mast cell stabilizers
        • Anti-inflammatory medications
        • Other medications
        • Immunotherapy
        • Allergy treatment during pregnancy and breastfeeding
        • Treatment references
      • Prevention
      • Key Points
      • More Information
    • Autoimmune Disorders
      • Mechanisms
      • Genetic factors
      • Defense mechanisms
      • Reference
    • Drug Hypersensitivity
      • Pathophysiology
        • Pathophysiology references
      • Symptoms and Signs
      • Diagnosis
        • Skin testing
        • Other testing
        • Diagnosis references
      • Treatment
        • Desensitization
        • Treatment references
      • Prognosis
        • Prognosis reference
      • Key Points
    • Mastocytosis and Mast Cell Activation Syndrome
      • Classification
        • Cutaneous mastocytosis
        • Systemic mastocytosis
        • Mast cell activation syndrome
        • Classification reference
      • Symptoms and Signs
      • Diagnosis
        • Systemic mastocytosis
        • Mast cell activation syndrome
        • Diagnosis references
      • Treatment
        • Cutaneous mastocytosis
        • Systemic mastocytosis
        • Mast cell activation syndrome
        • Treatment references
      • Key Points
    Immunodeficiency Disorders
    • Selective Antibody Deficiency With Normal Immunoglobulins (SADNI)
      • General reference
      • Diagnosis
        • Diagnosis reference
      • Treatment
    • Overview of Immunodeficiency Disorders
      • Primary Immunodeficiencies
        • Humoral immunity deficiencies
        • Cellular immunity deficiencies
        • Combined humoral and cellular immunity deficiencies
        • Phagocytic cell defects
        • Complement deficiencies
        • Primary immunodeficiency references
      • Secondary Immunodeficiencies
      • Geriatrics Essentials
      • Key Points
    • Approach to the Patient With Suspected Immunodeficiency
      • Manifestations of immunodeficiency
      • Evaluation
        • History
        • Physical examination
        • Initial testing
        • Additional testing
        • Prenatal and neonatal diagnosis
        • Evaluation references
      • Treatment
        • Infection prevention
        • Management of acute infection
        • Replacement of missing immune components
        • Investigational therapy
        • Treatment references
      • Prognosis
      • Key Points
    • Ataxia-Telangiectasia
      • General reference
      • Symptoms and Signs
      • Diagnosis
        • Diagnosis references
      • Treatment
        • Treatment references
      • Key Points
    • Chédiak-Higashi Syndrome
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Treatment reference
    • Chronic Granulomatous Disease (CGD)
      • Symptoms and Signs
        • Symptoms and signs reference
      • Diagnosis
      • Treatment
        • Treatment references
      • Key Points
    • Chronic Mucocutaneous Candidiasis
      • Symptoms and Signs
      • Diagnosis
      • Treatment
      • Key Points
    • Common Variable Immunodeficiency (CVID)
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Treatment reference
    • DiGeorge Syndrome
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Treatment reference
    • Hyper-IgE Syndrome
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Treatment reference
    • Hyper-IgM Syndrome
      • X-linked hyper-IgM syndrome
      • Autosomal recessive hyper-IgM syndrome
      • Diagnosis
      • Treatment
        • Treatment reference
    • Selective IgA Deficiency
      • General references
      • Symptoms and Signs
      • Diagnosis
        • Diagnosis reference
      • Treatment
      • Prognosis
      • Key Points
    • Leukocyte Adhesion Deficiency
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Treatment reference
    • Severe Combined Immunodeficiency (SCID)
      • Symptoms and Signs
      • Diagnosis
        • Diagnosis reference
      • Treatment
        • Treatment references
      • Key Points
    • Transient Hypogammaglobulinemia of Infancy
    • Wiskott-Aldrich Syndrome
      • General reference
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Treatment references
    • X-linked Agammaglobulinemia
      • Diagnosis
      • Treatment
        • Treatment references
    • X-linked Lymphoproliferative Syndrome
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Treatment references
    • ZAP-70 Deficiency
      • Diagnosis
      • Treatment
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