Abstract: Document difference viewing and navigation are disclosed that enables automatic comparison and easy viewing of the difference between many documents (e.g., four or more, dozens, hundreds, or thousands of documents) for, for example, document review processes. The system receives and reads a set of documents containing text. The system identifies shared text and differences by location within the shared text among different documents in the set of documents. It sorts the documents in the set of documents into groups of different text variation versions and generates a shared difference document. The shared difference document is displayed in a first panel of a user interface and displays shared text as static text and areas of difference in highlighted regions. When a user selects of a given area of difference, the text variations and a list of documents containing one or more corresponding text variations are displayed in a second panel.

Abstract: An oral dosage form comprising a first composition and a second composition, each composition comprising a pharmaceutically acceptable weak base, especially Compound A or a pharmaceutically acceptable salt or solvate thereof, (‘the drug’) and a pharmaceutically acceptable carrier therefor, wherein the first and second compositions are arranged to release drug at differing release rates on administration such that the rate of release of the drug from the dosage form is substantially independent of pH; a process for preparing such a dosage form and the use of such a dosage form in medicine.