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    Close up of horse snoot — Stock Photo
    Close up of horse snoot
    Doctor checking grip strength for patient — Stock Photo
    Doctor checking grip strength for patient
    Colored scanning electron micrograph of activated T lymphocyte from human blood sample. — Stock Photo
    Colored scanning electron micrograph of activated T lymphocyte from human blood sample.
    Human heart, computer illustration. — Stock Photo
    Human heart, computer illustration.
    Anonymous focused male surgeon in blue gown mask and magnifying eyeglasses standing near sterile field with various medical tools during operation in modern clinic — Stock Photo
    Anonymous focused male surgeon in blue gown mask and magnifying eyeglasses standing near sterile field with various medical tools during operation in modern clinic
    Realistic human body model showing male anatomy with internal organs, digital illustration. — Stock Photo
    Realistic human body model showing male anatomy with internal organs, digital illustration.
    Blood vessels of the head, computer illustration — Stock Photo
    Blood vessels of the head, computer illustration
    Doctor holding oxygen mask over patient, male doctor adjusting IV drip — Stock Photo
    Doctor holding oxygen mask over patient, male doctor adjusting IV drip
    Male back anatomy and skeletal system, computer illustration. — Stock Photo
    Male back anatomy and skeletal system, computer illustration.
    Male and female surgeons performing operation in operation theater of hospital — Stock Photo
    Male and female surgeons performing operation in operation theater of hospital
    Male doctor examining female patient on sofa — Stock Photo
    Male doctor examining female patient on sofa
    Cropped doctor's hand holding coronavirus vaccine in flask near syringe with needle and negative blood test on blue background — Stock Photo
    Cropped doctor's hand holding coronavirus vaccine in flask near syringe with needle and negative blood test on blue background
    Cells attacked by virus — Stock Photo
    Cells attacked by virus
    Close-up of test tube in rack at blood bank — Stock Photo
    Close-up of test tube in rack at blood bank
    Close-up of unconscious girl fallen on ground after accident — Stock Photo
    Close-up of unconscious girl fallen on ground after accident
    Human nerve structure in cross section, digital illustration. — Stock Photo
    Human nerve structure in cross section, digital illustration.
    Transparent human body with internal organs, nervous, lymphatic and circulatory systems — Stock Photo
    Transparent human body with internal organs, nervous, lymphatic and circulatory systems
    Arteries in transparent dog body, anatomical computer illustration. — Stock Photo
    Arteries in transparent dog body, anatomical computer illustration.
    Illustration of senior woman silhouette showing heart on black background. — Stock Photo
    Illustration of senior woman silhouette showing heart on black background.
    Visible heart in female body silhouette, computer illustration. — Stock Photo
    Visible heart in female body silhouette, computer illustration.
    Arteries in transparent dog body, anatomical computer illustration. — Stock Photo
    Arteries in transparent dog body, anatomical computer illustration.
    3d rendered illustration of colored female heart in body silhouette. — Stock Photo
    3d rendered illustration of colored female heart in body silhouette.
    Female silhouette showing heart anatomy, computer illustration. — Stock Photo
    Female silhouette showing heart anatomy, computer illustration.
    Head louse on white background, digital illustration. — Stock Photo
    Head louse on white background, digital illustration.
    Crop unrecognizable sportswoman with curvy body watching heart rate on wearable tracker during workout on street — Stock Photo
    Crop unrecognizable sportswoman with curvy body watching heart rate on wearable tracker during workout on street
    Red blood cells — Stock Photo
    Red blood cells
    Cropped shot of physician using stethoscope on patient's hand — Stock Photo
    Cropped shot of physician using stethoscope on patient's hand
    Fat in blood cells blocking blood vessel, digital illustration. — Stock Photo
    Fat in blood cells blocking blood vessel, digital illustration.
    Normal red blood cells — Stock Photo
    Normal red blood cells
    Blood orange juice — Stock Photo
    Blood orange juice
    Male head and neck anatomy and blood vessels, computer illustration. — Stock Photo
    Male head and neck anatomy and blood vessels, computer illustration.
    Illustration of stent inside of human fatty artery. — Stock Photo
    Illustration of stent inside of human fatty artery.
    Protozoa Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration. — Stock Photo
    Protozoa Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration.
    Coronavirus infection, conceptual illustration. — Stock Photo
    Coronavirus infection, conceptual illustration.
    Visual render of Human skin anatomy — Stock Photo
    Visual render of Human skin anatomy
    Digital illustration of eosinophil white blood cells with lobed nuclei colored in purple. — Stock Photo
    Digital illustration of eosinophil white blood cells with lobed nuclei colored in purple.
    Bacteria amidst blood cells in blood vessel, digital illustration. — Stock Photo
    Bacteria amidst blood cells in blood vessel, digital illustration.
    Structure of white blood cell — Stock Photo
    Structure of white blood cell
    Human skeleton with organs and circulatory system — Stock Photo
    Human skeleton with organs and circulatory system
    Close-up of hands of mature woman using paper strip to test blood glucose. — Stock Photo
    Close-up of hands of mature woman using paper strip to test blood glucose.
    Vintage glass syringe and medecal needle — Stock Photo
    Vintage glass syringe and medecal needle
    Illustration of silhouette of obese man with visible heart. — Stock Photo
    Illustration of silhouette of obese man with visible heart.
    HIV particles in the bloodstream — Stock Photo
    HIV particles in the bloodstream
    Digital illustration of senior man anatomy showing heart. — Stock Photo
    Digital illustration of senior man anatomy showing heart.
    Single test tube with blood sample. — Stock Photo
    Single test tube with blood sample.
    Alveolar tissue macrophage, digital illustration. — Stock Photo
    Alveolar tissue macrophage, digital 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.
    Red and white blood cells — Stock Photo
    Red and white blood cells
    Vegan tapioca pasta with beluga lentils, kale, blood oranges and coriander — Stock Photo
    Vegan tapioca pasta with beluga lentils, kale, blood oranges and coriander
    Viral particle infection blood stream — Stock Photo
    Viral particle infection blood stream
    Injured girl treated by paramedic at accident spot — Stock Photo
    Injured girl treated by paramedic at accident spot
    Digital illustration of trypanosome protozoan parasites causing sleeping sickness transmitted by blood. — Stock Photo
    Digital illustration of trypanosome protozoan parasites causing sleeping sickness transmitted by blood.
    Laboratory technician analyzing blood bag in blood bank — Stock Photo
    Laboratory technician analyzing blood bag in blood bank
    Human heart and its electrical system, 3d illustration. The yellow lines demonstrate the electrical (conduction) system of the heart. The heart at right shows an irregular heartbeat (arrhythmia) and atrial fibrillation. — Stock Photo
    Human heart and its electrical system, 3d illustration. The yellow lines demonstrate the electrical (conduction) system of the heart. The heart at right shows an irregular heartbeat (arrhythmia) and atrial fibrillation.
    Abstract blood vessel with white and red blood cells, digital illustration. — Stock Photo
    Abstract blood vessel with white and red blood cells, digital illustration.
    Human red blood cells and platelets — Stock Photo
    Human red blood cells and platelets
    Colored illustration showing abundant lymphoblast cells in human bone marrow smear in acute lymphoblastic leukaemia. — Stock Photo
    Colored illustration showing abundant lymphoblast cells in human bone marrow smear in acute lymphoblastic leukaemia.
    Close-up of plasma bags in a crate at blood bank — Stock Photo
    Close-up of plasma bags in a crate at blood bank
    Realistic human heart model on black background, computer illustration. — Stock Photo
    Realistic human heart model on black background, computer illustration.
    Test tubes with red liquid in rack. — Stock Photo
    Test tubes with red liquid in rack.