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    3d rendered illustration of diseased heart valve on white background. — Stock Photo
    3d rendered illustration of diseased heart valve on white background.
    Illustration of senior woman blue silhouette with highlighted heart on black background. — Stock Photo
    Illustration of senior woman blue silhouette with highlighted heart on black background.
    Illustration of human heart in body silhouette. — Stock Photo
    Illustration of human heart in body silhouette.
    Palm leaves, Flat lay — Stock Photo
    Palm leaves, Flat lay
    Illustration of senior woman blue silhouette with highlighted heart on white background. — Stock Photo
    Illustration of senior woman blue silhouette with highlighted heart on white background.
    Green natural detail plant pattern — Stock Photo
    Green natural detail plant pattern
    Blood pressure and circulatory system with labels — Stock Photo
    Blood pressure and circulatory system with labels
    Human eye with muscles and circulatory system — Stock Photo
    Human eye with muscles and circulatory system
    Illustration of female silhouette with painful heart. — Stock Photo
    Illustration of female silhouette with painful heart.
    Green natural detail plant pattern — Stock Photo
    Green natural detail plant pattern
    Human skull with brain and circulatory system — Stock Photo
    Human skull with brain and circulatory system
    Platelets in human blood, computer illustration. — Stock Photo
    Platelets in human blood, computer illustration.
    Anatomy of liver with stomach and pancreas — Stock Photo
    Anatomy of liver with stomach and pancreas
    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 metal artificial heart on white background. — Stock Photo
    Illustration of metal artificial heart on white background.
    Blood supply network of human head — Stock Photo
    Blood supply network of human head
    Superfood: Fresh Kale close-up view — Stock Photo
    Superfood: Fresh Kale close-up view
    Human skin anatomy — Stock Photo
    Human skin anatomy
    Medical nanorobot in human blood vessel, panoramic digital illustration. — Stock Photo
    Medical nanorobot in human blood vessel, panoramic digital illustration.
    Illustration of human heart in body silhouette. — Stock Photo
    Illustration of human heart in body silhouette.
    Red autumn foliage, close up shot — Stock Photo
    Red autumn foliage, close up shot
    Digital illustration of human bone anatomy. — Stock Photo
    Digital illustration of human bone anatomy.
    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 cross section of kidney on black background. — Stock Photo
    Illustration of cross section of kidney on black background.
    3d rendered illustration of colored female heart in body silhouette. — Stock Photo
    3d rendered illustration of colored female heart in body silhouette.
    Male vascular system — Stock Photo
    Male vascular system
    Human heart, computer illustration. — Stock Photo
    Human heart, computer illustration.
    Blood supply of human arm — Stock Photo
    Blood supply of human arm
    Illustration of human heart in body silhouette. — Stock Photo
    Illustration of human heart in body silhouette.
    3d rendered illustration of blue silhouette of man with chest pain on black background. — Stock Photo
    3d rendered illustration of blue silhouette of man with chest pain on black background.
    Illustration of female silhouette with highlighted heart. — Stock Photo
    Illustration of female silhouette with highlighted heart.
    Closeup anonymous senior person holding small fresh flower in wrinkled hands — Stock Photo
    Closeup anonymous senior person holding small fresh flower in wrinkled hands
    Illustration of human heart in body silhouette. — Stock Photo
    Illustration of human heart in body silhouette.
    Skeletal and cardiovascular systems of adult — Stock Photo
    Skeletal and cardiovascular systems of adult
    Section through a full term placenta — Stock Photo
    Section through a full term placenta
    Illustration of single human blood cell on black background. — Stock Photo
    Illustration of single human blood cell on black background.
    Erythrocytes and leukocytes blood cells in human blood vessel, digital illustration. — Stock Photo
    Erythrocytes and leukocytes blood cells in human blood vessel, digital illustration.
    Crop anonymous female volunteer giving blood for save life in modern blood transfusion center — Stock Photo
    Crop anonymous female volunteer giving blood for save life in modern blood transfusion center
    Red blood cells and blood vessel — Stock Photo
    Red blood cells and blood vessel
    Closeup texture of dark rough rock in sunlight — Stock Photo
    Closeup texture of dark rough rock in sunlight
    Nanorobot on red blood cell — Stock Photo
    Nanorobot on red blood cell
    Hand holding bright red leaf in autumn — Stock Photo
    Hand holding bright red leaf in autumn
    Transparent human body with internal organs, nervous, lymphatic and circulatory systems — Stock Photo
    Transparent human body with internal organs, nervous, lymphatic and circulatory systems
    Nervous and circulatory systems — Stock Photo
    Nervous and circulatory systems
    Cardiovascular system of arm and shoulder — Stock Photo
    Cardiovascular system of arm and shoulder
    3d rendered illustration of male cyclist anatomy on black background. — Stock Photo
    3d rendered illustration of male cyclist anatomy on black background.
    Still life close up fresh, organic, healthy green savoy cabbage, texture, pattern — Stock Photo
    Still life close up fresh, organic, healthy green savoy cabbage, texture, pattern
    3d rendered illustration of blue silhouette of man with chest pain. — Stock Photo
    3d rendered illustration of blue silhouette of man with chest pain.
    Illustration of thyroid tumour in realistic skeleton. — Stock Photo
    Illustration of thyroid tumour in realistic skeleton.
    Comparison of different sized kidney stones in the human kidney — Stock Photo
    Comparison of different sized kidney stones in the human kidney
    Half of pawpaw with seeds between tangerines and cumquats with leaves on white crumpled cloth — Stock Photo
    Half of pawpaw with seeds between tangerines and cumquats with leaves on white crumpled cloth
    Illustration of inflamed heart in human body silhouette. — Stock Photo
    Illustration of inflamed heart in human body silhouette.
    Illustration of healthy heart in human body silhouette. — Stock Photo
    Illustration of healthy heart in human body silhouette.
    Cardiovascular system transporting nutrients and oxygen — Stock Photo
    Cardiovascular system transporting nutrients and oxygen
    Crop female medical specialist in latex gloves performing injection with syringe to anonymous patient during procedure of blood transfusion in hospital — Stock Photo
    Crop female medical specialist in latex gloves performing injection with syringe to anonymous patient during procedure of blood transfusion in hospital
    Crop anonymous female volunteer giving blood for save life in modern blood transfusion center — Stock Photo
    Crop anonymous female volunteer giving blood for save life in modern blood transfusion center
    Illustration of lipid blood clot in circulatory system. — Stock Photo
    Illustration of lipid blood clot in circulatory system.
    Anatomy of human salivary glands — Stock Photo
    Anatomy of human salivary glands
    Light micrograph of a section through tissue showing an artery (middle ) and a vein (top left). — Stock Photo
    Light micrograph of a section through tissue showing an artery (middle ) and a vein (top left).
    Bacteria amidst blood cells in blood vessel, digital illustration. — Stock Photo
    Bacteria amidst blood cells in blood vessel, digital illustration.