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An image of a macrophage and its cellular processes. Macrophages are white blood cells that phagocytose cellular debris and pathogens. They also stimulate lymphocytes and other immune cells to respond to the pathogen. Royalty Free
MedicalRF.com/Visuals Unlimited, Inc.
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Visuals Unlimited, Inc. specializes in, microscopy, healthcare, medical, wildlife, underwater, agriculture, and science stock photography.