If you care to pass the PACES/OSCE/all clinical internal medicine examinations, and above all practice good medicine, take this book as your trusted guide. Professor Mohamed Elbagir Khalafalla Ahmed. Professor of medicine, gastroenterology, medical education and therapeutics. Faculty of Medicine, University of Khartoum, Sudan MBBS (Khartoum, Sudan), MRCP(UK), FRCP(London, UK), MD(University of Khartoum, Sudan), & FACP(USA) Graduated from the Faculty of Medicine, University of Khartoum, Sudan 1972. Trained in Sudan (MD), UK (MRCP & FRCP) and in USA (FACP). Previous posts: Chairman of department of medicine, Faculty of medicine, University of Khartoum, Sudan. Director of internal medicine postgraduate training in Sudan and Saudi Arabia. Dean, College of medicine, University of medical Sciences & Technology, Khartoum, Sudan. Over four decades of teaching medical students and training postgraduate doctors sitting for the PACES & internal medicine boards in Sudan, the UK, USA, and Saudi Arabia. Senior examiner in MRCP PACES(UK), Sudanese MD (Internal medicine) Board, Arab board and Saudi Boards of internal medicine. Author of 95 published scientific papers and three published medical books