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    Heart attack in human body, conceptual illustration. — Stock Photo
    Heart attack in human body, conceptual 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.
    Normal blood cells in artery — Stock Photo
    Normal blood cells in artery
    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
    Heart anatomy in male thorax, computer illustration. — Stock Photo
    Heart anatomy in male thorax, computer illustration.
    Blood clot, computer illustration — Stock Photo
    Blood clot, computer illustration
    Rear view of human skeleton showing kidneys and nervous system — Stock Photo
    Rear view of human skeleton showing kidneys and nervous system
    Bacteria and viruses in human artery, digital illustration. — Stock Photo
    Bacteria and viruses in human artery, digital illustration.
    Frontal illustration of blue silhouette of obese woman with highlighted heart on black background. — Stock Photo
    Frontal illustration of blue silhouette of obese woman with highlighted heart on black background.
    3d rendered illustration of human heart. — Stock Photo
    3d rendered illustration of human heart.
    Anatomy and body systems of adult female — Stock Photo
    Anatomy and body systems of adult female
    Female body with visible cardiovascular system, digital illustration. — Stock Photo
    Female body with visible cardiovascular system, digital illustration.
    Female silhouette showing heart anatomy, computer illustration. — Stock Photo
    Female silhouette showing heart anatomy, computer illustration.
    Illustration of flowing human blood cells. — Stock Photo
    Illustration of flowing human blood cells.
    Illustration of clot of human blood cells. — Stock Photo
    Illustration of clot of human blood cells.
    Conceptual illustration of red blood cells (erythrocytes) with oxygen molecules (white) in an artery. — Stock Photo
    Conceptual illustration of red blood cells (erythrocytes) with oxygen molecules (white) in an artery.
    Male anatomy showing skeleton and vascular system, computer illustration. — Stock Photo
    Male anatomy showing skeleton and vascular system, computer illustration.
    Normal and healthy abdomen anatomy — Stock Photo
    Normal and healthy abdomen anatomy
    Snake red blood cells. Coloured scanning electron micrograph (SEM) of whole and fractured red blood cells (erythrocytes, red) in a small blood vessel of a snake — Stock Photo
    Snake red blood cells. Coloured scanning electron micrograph (SEM) of whole and fractured red blood cells (erythrocytes, red) in a small blood vessel of a snake
    Schematic representation of human vein structure — Stock Photo
    Schematic representation of human vein structure
    Diseased blood cells with bacteria, computer illustration. — Stock Photo
    Diseased blood cells with bacteria, 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.
    Transparent human body showing heart and main circulatory system with internal organs, nervous, lymphatic and circulatory systems — Stock Photo
    Transparent human body showing heart and main circulatory system with internal organs, nervous, lymphatic and circulatory systems
    Cholesterol plaque leading to atherosclerosis — Stock Photo
    Cholesterol plaque leading to atherosclerosis
    Red blood cells and platelets — Stock Photo
    Red blood cells and platelets
    Digital illustration showing destruction of lymphoblast cells, acute lymphoblastic leukaemia treatment concept. — Stock Photo
    Digital illustration showing destruction of lymphoblast cells, acute lymphoblastic leukaemia treatment concept.
    Illustration of heart in transparent male silhouette. — Stock Photo
    Illustration of heart in transparent male silhouette.
    Medical illustration of head arteries, veins and lymphatic system — Stock Photo
    Medical illustration of head arteries, veins and lymphatic system
    Transparent rear view of human body showing skeleton, kidneys and nervous system — Stock Photo
    Transparent rear view of human body showing skeleton, kidneys and nervous system
    Illustration showing different types of blood cells, erythrocytes, neutrophil, monocyte, basophil, eosinophil, lymphocyte, and platelets. — Stock Photo
    Illustration showing different types of blood cells, erythrocytes, neutrophil, monocyte, basophil, eosinophil, lymphocyte, and platelets.
    Illustration of heart and circulatory system. — Stock Photo
    Illustration of heart and circulatory system.
    Human cardiovascular system — Stock Photo
    Human cardiovascular system
    3d rendered illustration of human heart. — Stock Photo
    3d rendered illustration of human heart.
    Vascular system in normal female body, digital illustration — Stock Photo
    Vascular system in normal female body, digital illustration
    View of Brain anatomy — Stock Photo
    View of Brain anatomy
    Medical illustration of alveoli on black background — Stock Photo
    Medical illustration of alveoli on black background
    Human artery showing artery walls and bloodstream — Stock Photo
    Human artery showing artery walls and bloodstream
    Cardiovascular system and heart in normal male body, computer illustration. — Stock Photo
    Cardiovascular system and heart in normal male body, computer illustration.
    Female abdominal blood vessels, computer illustration. — Stock Photo
    Female abdominal blood vessels, computer illustration.
    Realistic human heart and blood vessels on white background, digital illustration. — Stock Photo
    Realistic human heart and blood vessels on white background, digital illustration.
    Female body with visible vascular system, digital illustration. — Stock Photo
    Female body with visible vascular system, digital illustration.
    Illustration of blue silhouette of obese woman with highlighted heart on black background. — Stock Photo
    Illustration of blue silhouette of obese woman with highlighted heart on black background.
    Diseased blood cells with bacteria, computer illustration. — Stock Photo
    Diseased blood cells with bacteria, computer illustration.
    Blood vessels of human head and neck, digital illustration. — Stock Photo
    Blood vessels of human head and neck, digital illustration.
    Fat in blood cells blocking blood vessel, digital illustration. — Stock Photo
    Fat in blood cells blocking blood vessel, digital illustration.
    Diseased blood cells with bacteria, computer illustration. — Stock Photo
    Diseased blood cells with bacteria, computer illustration.
    Realistic human heart and blood vessels on black background, digital illustration. — Stock Photo
    Realistic human heart and blood vessels on black background, digital illustration.
    Visible heart in female body silhouette, computer illustration. — Stock Photo
    Visible heart in female body silhouette, computer illustration.
    Human blood cells — Stock Photo
    Human blood cells
    Cardiovascular system of an adult — Stock Photo
    Cardiovascular system of an adult
    Male body with visible vascular system, computer illustration. — Stock Photo
    Male body with visible vascular system, computer illustration.
    Skeletal and cardiovascular systems of adult — Stock Photo
    Skeletal and cardiovascular systems of adult
    Fat in blood cells blocking blood vessel, digital illustration. — Stock Photo
    Fat in blood cells blocking blood vessel, digital illustration.
    3D rendering of digestive and male reproductive systems — Stock Photo
    3D rendering of digestive and male reproductive systems
    Human body model showing male anatomy and blood vessels, digital illustration. — Stock Photo
    Human body model showing male anatomy and blood vessels, digital illustration.
    Baseball player anatomy with visible heart, computer illustration. — Stock Photo
    Baseball player anatomy with visible heart, computer illustration.
    Male body silhouette showing heart anatomy, computer illustration. — Stock Photo
    Male body silhouette showing heart anatomy, computer illustration.
    Anatomy of female kidneys reproductive organs — Stock Photo
    Anatomy of female kidneys reproductive organs
    Abdominal vascular system in male body, computer illustration. — Stock Photo
    Abdominal vascular system in male body, computer illustration.
    Vascular system of female upper body, computer illustration. — Stock Photo
    Vascular system of female upper body, computer illustration.