Fig. 3
From: MetaTron: advancing biomedical annotation empowering relation annotation and collaboration
MetaTron user interface. The main annotation interface consists of five distinct blocks: in the main header (1), the user can navigate to other web pages and logout; in the document header (2), there is the main information about a document; in annotation panel (3) it is possible to check the annotation status; the document takes the largest part of the page to annotate (4); and in the vertical toolbar (5) it is possible to access several functions a user can perform during the annotation process