The National Library of Medicine has just added the Julius Axelrod papers to its Profiles in Science Collection. The fourth scientist to become part of the collection, Axelrod shared the Nobel Prize in 1970 for his research on neurotransmitters. His work was foundational in the later development of antidepressants, and Axelrod coined the term "reuptake" to explain how antidepressants work on the brain. Profiles in Science features an exhibit which gives an overview of the periods of Axelrod's work and offers .pdf documents and photographs grouped by era. The documents are also accessible via alphabetical or chronological listings grouped by document type (articles, clippings, laboratory notes, etc.), or through a search interface that lets users search either the documents themselves or the data about the documents.