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    Female upper body blood vessels, digital illustration. — Stock Photo
    Female upper body blood vessels, digital illustration.
    Lobar pneumonia in stage of congestion and consolidation, digital illustration and light micrograph. — Stock Photo
    Lobar pneumonia in stage of congestion and consolidation, digital illustration and light micrograph.
    Astrocyte brain glial cell connecting neuronal cells to blood vessel, digital illustration. — Stock Photo
    Astrocyte brain glial cell connecting neuronal cells to blood vessel, digital illustration.
    Vascular system of neck in male body, computer illustration. — Stock Photo
    Vascular system of neck in male body, computer illustration.
    Coronary angioplasty stent insertion — Stock Photo
    Coronary angioplasty stent insertion
    Coloured scanning electron micrograph (SEM) of a section through a vein in the liver, which is filled with red blood cells (erythrocytes, red). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a section through a vein in the liver, which is filled with red blood cells (erythrocytes, red).
    Blood vessels of the knee, computer illustration — Stock Photo
    Blood vessels of the knee, computer illustration
    Heart attack in human body, conceptual illustration. — Stock Photo
    Heart attack in human body, conceptual illustration.
    Heart disease in female body, conceptual digital illustration. — Stock Photo
    Heart disease in female body, conceptual digital illustration.
    Female upper body anatomy and internal organs, computer illustration. — Stock Photo
    Female upper body anatomy and internal organs, computer illustration.
    Male body silhouette showing heart anatomy, computer illustration. — Stock Photo
    Male body silhouette showing heart anatomy, computer illustration.
    Grey human heart model on red background, computer illustration. — Stock Photo
    Grey human heart model on red background, computer illustration.
    Human body model showing male anatomy and blood vessels, digital illustration. — Stock Photo
    Human body model showing male anatomy and blood vessels, digital illustration.
    Male anatomy showing vascular system, computer illustration. — Stock Photo
    Male anatomy showing vascular system, computer illustration.
    Narrowed artery causing atherosclerosis — Stock Photo
    Narrowed artery causing atherosclerosis
    Medical illustration of fat inside of human artery. — Stock Photo
    Medical illustration of fat inside of human artery.
    Light micrograph of a cross section through a grape vine (Vitis sp.) stem. — Stock Photo
    Light micrograph of a cross section through a grape vine (Vitis sp.) stem.
    Light micrograph of a cross sections of monocot stem. — Stock Photo
    Light micrograph of a cross sections of monocot stem.
    Macrophage foam cells with lipid droplets, digital illustration. — Stock Photo
    Macrophage foam cells with lipid droplets, digital illustration.
    Female body with visible vascular system, digital illustration. — Stock Photo
    Female body with visible vascular system, digital illustration.
    Lymphatic system of male upper body, computer illustration. — Stock Photo
    Lymphatic system of male upper body, computer illustration.
    Coloured scanning electron micrograph (SEM) of a section through wood showing the phloem vessels (dark green holes) and xylem tissue (lower frame). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a section through wood showing the phloem vessels (dark green holes) and xylem tissue (lower frame).
    Full dog anatomy with internal organs, digital illustration. — Stock Photo
    Full dog anatomy with internal organs, digital illustration.
    Adult female traveler with lush green plant leaf looking at camera during trip in woods — Stock Photo
    Adult female traveler with lush green plant leaf looking at camera during trip in woods
    Human heart, computer illustration — Stock Photo
    Human heart, computer illustration
    Human heart model on white background, computer illustration. — Stock Photo
    Human heart model on white background, computer illustration.
    Female vascular system, computer illustration. — Stock Photo
    Female vascular system, computer illustration.
    Artery partially blocked by atheroma — Stock Photo
    Artery partially blocked by atheroma
    Headache, computer illustration. A male body, with skeleton, holding its head in pain. The red area in the skull represents the pain of a headache — Stock Photo
    Headache, computer illustration. A male body, with skeleton, holding its head in pain. The red area in the skull represents the pain of a headache
    Cardiovascular system in female body, digital illustration. — Stock Photo
    Cardiovascular system in female body, digital illustration.
    Transparent female body with visible lymphatic system, digital illustration. — Stock Photo
    Transparent female body with visible lymphatic system, digital illustration.
    Male vascular system — Stock Photo
    Male vascular system
    Illustration of fatty heart on black background. — Stock Photo
    Illustration of fatty heart on black background.
    Healthy red and white blood cells — Stock Photo
    Healthy red and white blood cells
    View of Male vascular system — Stock Photo
    View of Male vascular system
    Female anatomy showing heart in transparent body silhouette, computer illustration. — Stock Photo
    Female anatomy showing heart in transparent body silhouette, computer illustration.
    Fat in blood cells blocking blood vessel, digital illustration. — Stock Photo
    Fat in blood cells blocking blood vessel, digital illustration.
    Abstract male body with visible lymphatic system of neck, computer illustration. — Stock Photo
    Abstract male body with visible lymphatic system of neck, computer illustration.
    Illustration of fat inside of human artery. — Stock Photo
    Illustration of fat inside of human artery.
    Female silhouette showing heart anatomy, computer illustration. — Stock Photo
    Female silhouette showing heart anatomy, computer illustration.
    Full dog anatomy with skeleton and internal organs, digital illustration. — Stock Photo
    Full dog anatomy with skeleton and internal organs, digital illustration.
    Illustration of transparent blue silhouette of male body with colored heart. — Stock Photo
    Illustration of transparent blue silhouette of male body with colored heart.
    Illustration of healthy heart in human body silhouette. — Stock Photo
    Illustration of healthy heart in human body silhouette.
    Full dog musculature with internal organs, digital illustration. — Stock Photo
    Full dog musculature with internal organs, digital illustration.
    Male head and neck anatomy, digital illustration. — Stock Photo
    Male head and neck anatomy, digital illustration.
    Digital illustration of balls of cholesterol lipids in blood vessel. — Stock Photo
    Digital illustration of balls of cholesterol lipids in blood vessel.
    Female silhouette showing heart anatomy, computer illustration. — Stock Photo
    Female silhouette showing heart anatomy, computer illustration.
    Human upper body blood vessels, digital illustration. — Stock Photo
    Human upper body blood vessels, digital illustration.
    Blood vessels of the knee, computer illustration — Stock Photo
    Blood vessels of the knee, computer illustration
    Human Aorta, computer illustration. — Stock Photo
    Human Aorta, computer illustration.
    Headache, computer illustration. A male body, with skeleton, holding its head in pain. The red area in the skull represents the pain of a headache — Stock Photo
    Headache, computer illustration. A male body, with skeleton, holding its head in pain. The red area in the skull represents the pain of a headache
    Male body with visible vascular system, computer illustration. — Stock Photo
    Male body with visible vascular system, computer illustration.
    Illustration of female silhouette with highlighted heart. — Stock Photo
    Illustration of female silhouette with highlighted heart.
    Fat in blood cells blocking blood vessel, digital illustration. — Stock Photo
    Fat in blood cells blocking blood vessel, digital illustration.
    Illustration of stent inside of human fatty artery. — Stock Photo
    Illustration of stent inside of human fatty artery.
    Full dog musculature with internal organs, digital illustration. — Stock Photo
    Full dog musculature with internal organs, digital illustration.
    Illustration of metal artificial heart on white background. — Stock Photo
    Illustration of metal artificial heart on white background.
    Male upper body anatomy and internal organs, computer illustration. — Stock Photo
    Male upper body anatomy and internal organs, computer illustration.
    Digital illustration of senior man anatomy showing heart. — Stock Photo
    Digital illustration of senior man anatomy showing heart.
    Male abdominal anatomy and internal organs, computer illustration. — Stock Photo
    Male abdominal anatomy and internal organs, computer illustration.