Blood and Bone Marrow | Johns Hopkins Medicine

blood cells — Blood and Bone Marrow

blood cells — Blood and Bone Marrow

A woman sits alone, looking out a window.

Folate-Deficiency Anemia

An illustration of blood cells.

senior man with cane smiling at caretaker — Alzheimer's disease

Blood Pressure and Alzheimer's Risk: What's the Connection?

A woman gets blood drawn. — Blood Banking

Blood Donations / Blood Banking

A doctor selects a test tube of blood to examine. — Hematology

Blood pressure measuring cuff on top of an ECG printout

Blood Transfusions in Adults

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