PRACTICAL GASTROINTESTINAL ENDOSCOPY The fundamental guide to gastrointestinal endoscopy returns in a fully updated new edition For over forty years, Cotton and Williams' Practical Gastrointestinal Endoscopy has offered a clear, accessible introduction to the fundamentals of endoscopy, from patient positioning to the range of available procedures. Now updated by a new authorial team to reflect the latest advances in endoscopic procedures, this text...