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    Male head and neck anatomy and musculature, digital illustration. — Stock Photo
    Male head and neck anatomy and musculature, digital illustration.
    Visible heart in female body silhouette, computer illustration. — Stock Photo
    Visible heart in female body silhouette, computer illustration.
    Male body with visible vascular system, computer illustration. — Stock Photo
    Male body with visible vascular system, computer illustration.
    Plasmodium malariae protozoan and red blood cells in blood vessel, computer illustration. — Stock Photo
    Plasmodium malariae protozoan and red blood cells in blood vessel, computer illustration.
    Medical illustration of arteries, veins and lymphatic system with heart — Stock Photo
    Medical illustration of arteries, veins and lymphatic system with heart
    3d illustration of cross section of hair follicle with description. — Stock Photo
    3d illustration of cross section of hair follicle with description.
    3d rendered illustration of colored female heart in body silhouette. — Stock Photo
    3d rendered illustration of colored female heart in body silhouette.
    Blood pressure and circulatory system with labels — Stock Photo
    Blood pressure and circulatory system with labels
    Vascular system in male body, computer illustration. — Stock Photo
    Vascular system in male body, computer illustration.
    Healthy cardiovascular system — Stock Photo
    Healthy cardiovascular system
    Male head and neck anatomy and blood vessels, computer illustration. — Stock Photo
    Male head and neck anatomy and blood vessels, computer illustration.
    Male head and neck anatomy and blood vessels, computer illustration. — Stock Photo
    Male head and neck anatomy and blood vessels, computer illustration.
    Illustration of blood cells in injured artery. — Stock Photo
    Illustration of blood cells in injured artery.
    Healthy female vascular system, computer illustration — Stock Photo
    Healthy female vascular system, computer illustration
    Blood vessels of the knee, computer illustration — Stock Photo
    Blood vessels of the knee, computer illustration
    Male anatomy showing vascular system, computer illustration. — Stock Photo
    Male anatomy showing vascular system, computer illustration.
    Skeletal and cardiovascular systems — Stock Photo
    Skeletal and cardiovascular systems
    Anatomy of bowman glomerular capsule — Stock Photo
    Anatomy of bowman glomerular capsule
    Male head and neck anatomy, digital illustration. — Stock Photo
    Male head and neck anatomy, digital illustration.
    Visible heart in female body silhouette, computer illustration. — Stock Photo
    Visible heart in female body silhouette, computer illustration.
    Illustration of platelets (thrombocytes) that have been activated (with extensions) and those that are non-activated. Platelets are part of the blood. When a blood vessel is damaged, the platelets become activated and secrete chemicals that cause the — Stock Photo
    Illustration of platelets (thrombocytes) that have been activated (with extensions) and those that are non-activated. Platelets are part of the blood. When a blood vessel is damaged, the platelets become activated and secrete chemicals that cause the
    Blood vessels of the knee, computer illustration — Stock Photo
    Blood vessels of the knee, computer illustration
    Coronary blood vessels in blue human heart model, digital illustration. — Stock Photo
    Coronary blood vessels in blue human heart model, digital illustration.
    Cerebellum and corpus callosum — Stock Photo
    Cerebellum and corpus callosum
    Male body with visible skeleton and vascular system, computer illustration. — Stock Photo
    Male body with visible skeleton and vascular system, computer illustration.
    Realistic human heart model on black background, computer illustration. — Stock Photo
    Realistic human heart model on black background, computer illustration.
    Female abdominal vascular system, computer illustration. — Stock Photo
    Female abdominal vascular system, computer illustration.
    Skeletal and cardiovascular systems — Stock Photo
    Skeletal and cardiovascular systems
    Protozoan Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration. — Stock Photo
    Protozoan Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration.
    Plasmodium malariae protozoa in blood vessel, computer illustration. — Stock Photo
    Plasmodium malariae protozoa in blood vessel, computer illustration.
    Bacterial infection in the blood stream — Stock Photo
    Bacterial infection in the blood stream
    Plasmodium falciparum protozoan inside red blood cells, computer illustration — Stock Photo
    Plasmodium falciparum protozoan inside red blood cells, computer illustration
    Female body with visible cardiovascular system, digital illustration — Stock Photo
    Female body with visible cardiovascular system, digital illustration
    Male body with visible vascular system, computer illustration. — Stock Photo
    Male body with visible vascular system, computer illustration.
    Illustration of figure of obese man with visible heart. — Stock Photo
    Illustration of figure of obese man with visible heart.
    Abstract blood vessel with white and red blood cells, digital illustration. — Stock Photo
    Abstract blood vessel with white and red blood cells, digital illustration.
    Vascular system of human head, computer illustration. — Stock Photo
    Vascular system of human head, computer illustration.
    Light micrograph (LM) showing blood supply to muscle fibers. — Stock Photo
    Light micrograph (LM) showing blood supply to muscle fibers.
    Female silhouette showing heart anatomy, computer illustration. — Stock Photo
    Female silhouette showing heart anatomy, computer illustration.
    Male shoulder anatomy, digital illustration. — Stock Photo
    Male shoulder anatomy, digital illustration.
    Structure of dog vascular system with colorful blood vessels in transparent body, computer illustration. — Stock Photo
    Structure of dog vascular system with colorful blood vessels in transparent body, computer illustration.
    Heart of glass anatomy — Stock Photo
    Heart of glass anatomy
    Human upper body blood vessels, digital illustration. — Stock Photo
    Human upper body blood vessels, digital illustration.
    Anatomy of human hand back side — Stock Photo
    Anatomy of human hand back side
    Male anatomy with tissue and systems — Stock Photo
    Male anatomy with tissue and systems
    Abstract blood vessel with white and red blood cells, digital illustration. — Stock Photo
    Abstract blood vessel with white and red blood cells, digital illustration.
    Blood vessels of the head, computer illustration — Stock Photo
    Blood vessels of the head, computer illustration
    Normal red blood cells — Stock Photo
    Normal red blood cells
    Female anatomy showing vascular system, digital illustration. — Stock Photo
    Female anatomy showing vascular system, digital illustration.
    Healthy female vascular system, computer illustration — Stock Photo
    Healthy female vascular system, computer illustration
    Vascular system in normal female body, digital illustration — Stock Photo
    Vascular system in normal female body, digital illustration
    Vascular system in normal female body, digital illustration — Stock Photo
    Vascular system in normal female body, digital illustration
    Healthy female vascular system, computer illustration — Stock Photo
    Healthy female vascular system, computer illustration
    Illustration of heart in transparent male silhouette. — Stock Photo
    Illustration of heart in transparent male silhouette.
    Female silhouette showing heart anatomy, computer illustration. — Stock Photo
    Female silhouette showing heart anatomy, computer illustration.
    Arteries in transparent dog body, anatomical computer illustration. — Stock Photo
    Arteries in transparent dog body, anatomical computer illustration.
    Abstract blood vessel with white and red blood cells, digital illustration. — Stock Photo
    Abstract blood vessel with white and red blood cells, digital illustration.
    Artery partially blocked by an atheroma — Stock Photo
    Artery partially blocked by an atheroma
    Human body model showing male anatomy and blood vessels, digital illustration. — Stock Photo
    Human body model showing male anatomy and blood vessels, digital illustration.
    Plasmodium vivax protozoa and red blood cells, digital illustration. — Stock Photo
    Plasmodium vivax protozoa and red blood cells, digital illustration.