Index P. 361-374 ; This bookreflects the real world in which doctors practise medicine. The selection of clinical problems guides the reader, step by step, through the correct path in the maze between the presenting complaint of a patient and the final diagnosis. The text emphasises the value of interpreting available clinical and investigative information in a logical way before considering a definitive diagnosis.The 100 cases are based on the presenting problems of Davidson s Principles and Practice of Medicine. The book provides an international outlook reflecting the differences in the practice of medicine in the developing world and in low-resource settings, and addresses the epidemiological, economic and other reasons for many of these important differences.