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Blood - Wikipedia
Components of blood (article) | Khan Academy
Blood | American Society of Hematology
Blood | Definition, Composition, & Functions | Britannica
Blood: Function, What It Is & Why We Need It - Cleveland Clinic
Blood: Components, functions, groups, and disorders - Medical News Today
Facts About Blood | Johns Hopkins Medicine
18.1 An Overview of Blood - Anatomy and Physiology 2e
Blood: Composition, components and function | Kenhub
Blood | MedlinePlus