Modern medicine has advanced greatly even in the short time since the first edition of this handbook was published. The aim of the first edition was to provide a concise but readable account of most of the investigations used in medical practice, helping readers choose the correct test for a given situation. The book attempted to be both patient- and test-centred so that it could be used in the clinic when patients present with symptoms or signs. The majority of the book was devoted to the tests themselves, subcategorised by specialty....