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Rare Disease Database

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Alagille Syndrome

Alexander Disease


Alopecia Areata

Alpers Disease

Alpha-1 Antitrypsin Deficiency


Alpha Thalassemia X-linked Intellectual Disability Syndrome

Alport Syndrome

Alström Syndrome

Alternating Hemiplegia of Childhood

Alveolar Capillary Dysplasia

Alveolar Soft Part Sarcoma

Alveolitis, Extrinsic Allergic

Alzheimer's Disease

Ameloblastic Carcinoma


Amelogenesis Imperfecta

Amniotic Band Syndrome


Amyotrophic Lateral Sclerosis


Anaplastic Astrocytoma

Andersen Disease (GSD IV)

Androgen Insensitivity Syndrome, Partial

Anemia, Blackfan Diamond

Anemia, Hemolytic, Acquired Autoimmune

Anemia, Hemolytic, Cold Antibody

Anemia, Hereditary Nonspherocytic Hemolytic

Anemia, Hereditary Spherocytic Hemolytic

Anemia, Megaloblastic

Anemia of Chronic Disease

Anemia, Pernicious

Anemias, Sideroblastic


Angelman Syndrome

Angioedema, Hereditary

Angioimmunoblastic T-Cell Lymphoma


Aniridia Cerebellar Ataxia Mental Deficiency

Ankylosing Spondylitis



Antiphospholipid Syndrome

Antisocial Personality Disorder

Antithrombin Deficiency

Antley Bixler Syndrome

Apert Syndrome

Aplasia Cutis Congenita

Apnea, Infantile

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