Of the diseases of childhood, hematologic conditions probably represent the most common noninfectious problems faced by physicians. Many diseases of the blood occur only within the pediatric age group, some are limited to infancy, and most differ in their natural history from the same condition encountered in an adult.
The first comprehensive treatise on pediatric hematology published in the United States was the initial edition of this book. It was received with considerable acclaim by practitioners and by specialists and was incorporated into all lists of "basic reading" for the pediatrician. The book combined a scholarly and comprehensive approach with emphasis on practical aspects of diagnosis and therapy; it was this fortuitous combination that gave it widespread appeal. The work evolved into the present volume, representing the third edition.
Inevitably, the length of nearly every chapter has increased and many new topics were added so that there are nearly