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AMBOSS covers all of your Step 1 needs. With a full access plan, you’ll get to high-yield content and smart study tools via a cross-linked Qbank and Library. Start your studying now with samples of some of our most cross-linked and cross-checked Step 1 Articles.

“[AMBOSS] [t]rains you how to get through questions quickly. Effective not just from a learning materials standpoint but a test-taking skills standpoint”

-Manish Mehta, Columbia University

Diabetes mellitus

Diabetes mellitus (DM) describes a group of metabolic diseases that are characterized by chronic hyperglycemia (elevated blood glucose levels). The two most common forms are type 1 and type 2 diabetes mellitus. Jump into the Article.


Congenital immunodeficiency disorders are characterized by a deficiency, absence, or defect in one or more of the main components of the immune system. These disorders are genetically determined and typically manifest during infancy. Jump into the Article.

Neurocutaneous syndromes

Neurocutaneous syndromes (phakomatoses) are a group of inherited diseases that affect various organs, most notably the central nervous system and skin. The most common neurocutaneous disorders are neurofibromatosis type I and II, tuberous sclerosis, Sturge-Weber syndrome, ataxia telangiectasia, and von Hippel-Lindau disease. Jump into the Article.

Hypersensitivity reactions

Hypersensitivity reactions are a group of conditions in which the immune system, which normally serves a protective role, has a harmful effect. Both allergies and many autoimmune disorders fall under the umbrella of hypersensitivity. Jump into the Article.

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