Screenshot of the annotation tool’s search and data selection screen with the section for document results expanded. The search interface accepts a number of keywords that are sent in parallel to each of the GOPUBMED services. Upon retrieval of the last response, results are combined and returned to the frontend. The client creates one request for each of the result domains (concepts, documents, statements). Whenever results are retrieved for a domain, the respective section of the GUI is updated immediately. Each search result displays the title of the result.