Book excerpt: Hematology, Immunology and Infectious Disease, a volume in Dr. Polin’s Neonatology: Questions and Controversies Series, offers expert authority on some of the toughest challenges you face in your practice. This medical reference book will help you provide better evidence-based care and improve patient outcomes with research on the latest advances. Reconsider how you handle difficult practice issues with coverage that addresses these topics head on and offers opinions from the leading experts in the field, supported by evidence whenever possible. Find information quickly and easily with a consistent chapter organization. Get the most authoritative advice available from world-class neonatologists who have the inside track on new trends and developments in neonatal care.