Edited by Adam feather, MBBS, FRCP, facadmed; David Randall, M A, MRCP; and Mona Waterhouse, M A, MRCP contributors comprise consultants at the top of their fields, paired with younger doctors closer to the exam experience, to ensure authority and relevance. Enhanced e-book accompanies the print book, for ease of transportation and use on the move. International advisory Board, led by Professor Janaka de Silva and Professor senaka rajapakse, providing guidance for global coverage from across the world. Contributions to the e-book by members of the international advisory Board to amplify areas of clinical importance in their parts of the world.