illiams Manual of Hematology, Ninth Edition provides a quick-access summary of the epidemiology, etiology, pathogenesis, diagnostic criteria, differential diagnosis, and therapy of blood cell and coagulation protein disorders. The 93 chapters of the Manual are a distillation of the disease- and therapy-focused chapters from the Ninth Edition of Williams Hematology. The book has been carefully edited to deliver only the most clinical point-of-care facts, making differential diagnosis faster, easier, and more efficient.