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    Head louse on white background, digital illustration. — Stock Photo
    Head louse on white background, digital illustration.
    Cropped view of doctor taking blood pressure of patient in hospital gown. — Stock Photo
    Cropped view of doctor taking blood pressure of patient in hospital gown.
    Illustration of heart in transparent male silhouette. — Stock Photo
    Illustration of heart in transparent male silhouette.
    Female structural anatomy — Stock Photo
    Female structural anatomy
    Vascular system of healthy adult — Stock Photo
    Vascular system of healthy adult
    Neutrophil white blood cell in blood, digital artwork. — Stock Photo
    Neutrophil white blood cell in blood, digital artwork.
    Cytotoxic T-cells capturing cancer cells, digital illustration. — Stock Photo
    Cytotoxic T-cells capturing cancer cells, digital illustration.
    Doctor measuring blood pressure — Stock Photo
    Doctor measuring blood pressure
    Illustration of cross section of human skin with hair follicle and blood vessels. — Stock Photo
    Illustration of cross section of human skin with hair follicle and blood vessels.
    Medical illustration of blastocyst beginning implanting in the wall of the uterus — Stock Photo
    Medical illustration of blastocyst beginning implanting in the wall of the uterus
    Odontoblasts and the dental pulp — Stock Photo
    Odontoblasts and the dental pulp
    Male vascular system — Stock Photo
    Male vascular system
    Bloodstream showing red blood cells — Stock Photo
    Bloodstream showing red blood cells
    Plasmodium malariae protozoa in blood vessel, computer illustration. — Stock Photo
    Plasmodium malariae protozoa in blood vessel, computer illustration.
    Diseased blood cells with bacteria, computer illustration. — Stock Photo
    Diseased blood cells with bacteria, computer illustration.
    Human brain with network of blood vessels — Stock Photo
    Human brain with network of blood vessels
    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.
    Babesia parasites inside red blood cell, computer illustration — Stock Photo
    Babesia parasites inside red blood cell, computer illustration
    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).
    Activated platelet from peripheral blood — Stock Photo
    Activated platelet from peripheral blood
    Cups of tea with lemon, sliced oranges — Stock Photo
    Cups of tea with lemon, sliced oranges
    Head louse on human hair, digital illustration. — Stock Photo
    Head louse on human hair, digital illustration.
    Close-up of blood pressure gauge. — Stock Photo
    Close-up of blood pressure gauge.
    Hand squeezing blood orange juice — Stock Photo
    Hand squeezing blood orange juice
    Medical illustration of fat inside of human artery. — Stock Photo
    Medical illustration of fat inside of human artery.
    Side view of young woman in protective mask sitting in medical armchair during blood transfusion procedure in contemporary hospital — Stock Photo
    Side view of young woman in protective mask sitting in medical armchair during blood transfusion procedure in contemporary hospital
    Veins in transparent dog body, anatomical computer illustration. — Stock Photo
    Veins in transparent dog body, anatomical computer illustration.
    Blood vessels of foot, computer illustration — Stock Photo
    Blood vessels of foot, computer illustration
    Artery partially blocked by atheroma — Stock Photo
    Artery partially blocked by atheroma
    Red blood cells in blood vessel, digital illustration. — Stock Photo
    Red blood cells in blood vessel, 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.
    Squeezer on sliced blood orange and glass of juice — Stock Photo
    Squeezer on sliced blood orange and glass of juice
    Male upper body anatomy and blood vessels, computer illustration. — Stock Photo
    Male upper body anatomy and blood vessels, computer illustration.
    From above coronavirus negative and positive blood test near vaccine flask and syringe on blue background — Stock Photo
    From above coronavirus negative and positive blood test near vaccine flask and syringe on blue background
    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.
    Human vein showing tissue stratification — Stock Photo
    Human vein showing tissue stratification
    Activated macrophage attacking bacteria — Stock Photo
    Activated macrophage attacking bacteria
    Human papillomavirus particles in the bloodstream — Stock Photo
    Human papillomavirus particles in the bloodstream
    Cropped shot of person receiving blood transfusion in hospital — Stock Photo
    Cropped shot of person receiving blood transfusion in hospital
    Veins in transparent dog body, anatomical computer illustration. — Stock Photo
    Veins in transparent dog body, anatomical computer illustration.
    Digital illustration of nits eggs of human head louse attached to human hair. — Stock Photo
    Digital illustration of nits eggs of human head louse attached to human hair.
    Healthy female vascular system, computer illustration — Stock Photo
    Healthy female vascular system, computer illustration
    Blood clot, computer illustration — Stock Photo
    Blood clot, computer illustration
    Female abdominal blood vessels, computer illustration. — Stock Photo
    Female abdominal blood vessels, computer illustration.
    Group of surgeons performing operation in operation theater of hospital — Stock Photo
    Group of surgeons performing operation in operation theater of hospital
    Finger-like projections of the duodenum — Stock Photo
    Finger-like projections of the duodenum
    Moro blood oranges, whole and juiced — Stock Photo
    Moro blood oranges, whole and juiced
    Horses standing in stalls — Stock Photo
    Horses standing in stalls
    Realistic body model showing female anatomy on white background, computer illustration. — Stock Photo
    Realistic body model showing female anatomy on white background, computer illustration.
    Blood vessels of the arms — Stock Photo
    Blood vessels of the arms
    Male body silhouette showing heart anatomy, computer illustration. — Stock Photo
    Male body silhouette showing heart anatomy, computer illustration.
    Realistic body model showing female anatomy on white background, computer illustration. — Stock Photo
    Realistic body model showing female anatomy on white background, computer illustration.
    Digital illustration of trypanosome protozoan parasite causing sleeping sickness transmitted by blood. — Stock Photo
    Digital illustration of trypanosome protozoan parasite causing sleeping sickness transmitted by blood.
    Ebola virus particles in blood, digital illustration. — Stock Photo
    Ebola virus particles in blood, digital illustration.
    Human heart against blue background, illustration. — Stock Photo
    Human heart against blue background, illustration.
    Lung tissue, coloured transmission electron micrograph (TEM). A pulmonary capillary containing two red blood cells (red) and three platelets (blue). A basement membrane (pink) surround the endothelium separating it from the alveolar epithelium — Stock Photo
    Lung tissue, coloured transmission electron micrograph (TEM). A pulmonary capillary containing two red blood cells (red) and three platelets (blue). A basement membrane (pink) surround the endothelium separating it from the alveolar epithelium
    Senior woman checking blood pressure on a monitor at home — Stock Photo
    Senior woman checking blood pressure on a monitor at home
    Male upper body anatomy and internal organs in low angle view, computer illustration. — Stock Photo
    Male upper body anatomy and internal organs in low angle view, 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
    African trypanosomiasis parasitic infection in the red blood cells — Stock Photo
    African trypanosomiasis parasitic infection in the red blood cells