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    Coloured magnetic resonance angiogram (MRA) of the arteries (white) supplying the kidneys (blue, upper left and right). — Stock Photo
    Coloured magnetic resonance angiogram (MRA) of the arteries (white) supplying the kidneys (blue, upper left and right).
    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.
    3d illustration of lymphocytes attacking cancer cell in human body. — Stock Photo
    3d illustration of lymphocytes attacking cancer cell in human body.
    Laboratory technician placing plasma bags in cabinet at blood bank — Stock Photo
    Laboratory technician placing plasma bags in cabinet at blood bank
    Coronavirus infection, conceptual illustration. — Stock Photo
    Coronavirus infection, conceptual illustration.
    Petri dishes with blood agar on blue background. — Stock Photo
    Petri dishes with blood agar on blue background.
    Normal cardiovascular system — Stock Photo
    Normal cardiovascular system
    From above panoramic scenery of night city with skyscrapers under shiny full Moon in Madrid — Stock Photo
    From above panoramic scenery of night city with skyscrapers under shiny full Moon in Madrid
    Normal blood vessels, X-ray — Stock Photo
    Normal blood vessels, X-ray
    Doctor using a glucometer to take a blood glucose reading from a patient. — Stock Photo
    Doctor using a glucometer to take a blood glucose reading from a patient.
    Illustration of HIV virus particles in human blood. — Stock Photo
    Illustration of HIV virus particles in human blood.
    Blood clotting in an ovarian follicle — Stock Photo
    Blood clotting in an ovarian follicle
    Toxoplasma gondii in blood, digital illustration. — Stock Photo
    Toxoplasma gondii in blood, digital illustration.
    Young female doctor with laptop checking up heartbeat of crop anonymous patient with heart rate monitor at desk in hospital during pandemic — Stock Photo
    Young female doctor with laptop checking up heartbeat of crop anonymous patient with heart rate monitor at desk in hospital during pandemic
    Doctor giving young girl finger prick test. — Stock Photo
    Doctor giving young girl finger prick test.
    Cardiovascular system of an adult — Stock Photo
    Cardiovascular system of an adult
    Red blood cells and white blood cells — Stock Photo
    Red blood cells and white blood cells
    Female anatomy showing vascular system, digital illustration. — Stock Photo
    Female anatomy showing vascular system, digital illustration.
    Human chorionic gonadotropin glycoprotein hormone, molecular structure. — Stock Photo
    Human chorionic gonadotropin glycoprotein hormone, molecular structure.
    Close-up of unconscious woman fallen on ground after accident — Stock Photo
    Close-up of unconscious woman fallen on ground after accident
    Digital illustration showing abundant lymphoblast cells in human blood in acute lymphoblastic leukaemia. — Stock Photo
    Digital illustration showing abundant lymphoblast cells in human blood in acute lymphoblastic leukaemia.
    Researcher extracting blood from a vial — Stock Photo
    Researcher extracting blood from a vial
    Transparent body model showing male anatomy and internal organs, digital illustration. — Stock Photo
    Transparent body model showing male anatomy and internal organs, digital illustration.
    Testing blood sample from a multi well plate during a clinical investigation. — Stock Photo
    Testing blood sample from a multi well plate during a clinical investigation.
    Digital illustration of senior man anatomy showing heart. — Stock Photo
    Digital illustration of senior man anatomy showing heart.
    Blood oxygen monitor on finger of patient in intensive care ward, close-up. — Stock Photo
    Blood oxygen monitor on finger of patient in intensive care ward, close-up.
    Structural anatomy of human arm — Stock Photo
    Structural anatomy of human arm
    Close-up shot of delicious Vegan black rice salad — Stock Photo
    Close-up shot of delicious Vegan black rice salad
    Whole and half blood oranges — Stock Photo
    Whole and half blood oranges
    Cardiovascular system transporting nutrients and oxygen — Stock Photo
    Cardiovascular system transporting nutrients and oxygen
    Structure of white blood cell — Stock Photo
    Structure of white blood cell
    Healthy red and white blood cells — Stock Photo
    Healthy red and white blood cells
    Whole and half blood oranges — Stock Photo
    Whole and half blood oranges
    Plasmodium ovale protozoan parasites and red blood cell in flow, computer illustration. — Stock Photo
    Plasmodium ovale protozoan parasites and red blood cell in flow, computer illustration.
    Structural anatomy of human pelvis — Stock Photo
    Structural anatomy of human pelvis
    Laboratory technician analyzing blood bag in blood bank — Stock Photo
    Laboratory technician analyzing blood bag in blood bank
    Female vascular system structure of legs, computer illustration. — Stock Photo
    Female vascular system structure of legs, computer illustration.
    Red blood cells — Stock Photo
    Red blood cells
    Vascular system of neck in male body, computer illustration. — Stock Photo
    Vascular system of neck in male body, computer illustration.
    Female doctor taking blood from senior male patient in clinic examination room — Stock Photo
    Female doctor taking blood from senior male patient in clinic examination room
    Heart anatomy in male thorax, computer illustration. — Stock Photo
    Heart anatomy in male thorax, computer illustration.
    White mask with reusable KN95 protection index for virus protection on light blue background — Stock Photo
    White mask with reusable KN95 protection index for virus protection on light blue background
    Aortic valve, computer illustration. — Stock Photo
    Aortic valve, computer illustration.
    Bags of donated blood in laboratory. — Stock Photo
    Bags of donated blood in laboratory.
    Arteries of cardiovascular system and skeletal structure — Stock Photo
    Arteries of cardiovascular system and skeletal structure
    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.
    Hand of researcher holding vacutainer tube above pool of blood and syringe. — Stock Photo
    Hand of researcher holding vacutainer tube above pool of blood and syringe.
    Red blood cells — Stock Photo
    Red blood cells
    Parasitic tick biting skin — Stock Photo
    Parasitic tick biting skin
    Cardiovascular system in normal male body, computer illustration. — Stock Photo
    Cardiovascular system in normal male body, computer illustration.
    Front view of an active senior woman checking her blood sugar level with a glucometer on the bed in bedroom at home — Stock Photo
    Front view of an active senior woman checking her blood sugar level with a glucometer on the bed in bedroom at home
    First-aiders practicing cardiopulmonary resuscitation on training dummy. — Stock Photo
    First-aiders practicing cardiopulmonary resuscitation on training dummy.
    Coloured angiogram (blood vessel X-ray) of the coronary arteries of a 52 year old patient. The artery at right has had a stent placed in it to treat a blockage. — Stock Photo
    Coloured angiogram (blood vessel X-ray) of the coronary arteries of a 52 year old patient. The artery at right has had a stent placed in it to treat a blockage.
    Woman checking blood pressure test at hospital — Stock Photo
    Woman checking blood pressure test at hospital
    Pyoderma skin disease — Stock Photo
    Pyoderma skin disease
    Digital illustration of Neisseria gonorrhoeae bacteria inside neutrophil white blood cells. — Stock Photo
    Digital illustration of Neisseria gonorrhoeae bacteria inside neutrophil white blood cells.
    Computer generated image of capsules modeled on sample of fluoxetine — Stock Photo
    Computer generated image of capsules modeled on sample of fluoxetine
    White mask with reusable KN95 protection index for virus protection on yellow background — Stock Photo
    White mask with reusable KN95 protection index for virus protection on yellow background
    HIV virus particles — Stock Photo
    HIV virus particles
    Trypanosoma brucei protozoan — Stock Photo
    Trypanosoma brucei protozoan