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    Macrophage foam cell containing lipid droplets, digital illustration. — Stock Photo
    Macrophage foam cell containing lipid droplets, digital illustration.
    White blood cell — Stock Photo
    White blood cell
    Paramecium sp. ciliate protozoa — Stock Photo
    Paramecium sp. ciliate protozoa
    Platelets in human blood, computer illustration. — Stock Photo
    Platelets in human blood, computer illustration.
    Dendritic cells of immune system — Stock Photo
    Dendritic cells of immune system
    Coloured scanning electron micrograph (SEM) of a human red blood cell (erythrocyte, red) and a white blood cell (leucoocyte, blue). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a human red blood cell (erythrocyte, red) and a white blood cell (leucoocyte, blue).
    Digital illustration of Neisseria gonorrhoeae bacteria inside neutrophil white blood cells. — Stock Photo
    Digital illustration of Neisseria gonorrhoeae bacteria inside neutrophil white blood cells.
    3d illustration of cancer cell attacked and killed by lymphocytes. — Stock Photo
    3d illustration of cancer cell attacked and killed by lymphocytes.
    T-cell attached to cancer cell — Stock Photo
    T-cell attached to cancer cell
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration
    White blood cells and proteins, digital illustration. — Stock Photo
    White blood cells and proteins, digital illustration.
    Gall bladder lining — Stock Photo
    Gall bladder lining
    A Latina mother and daughter take a selfie photo with their cell phone — Stock Photo
    A Latina mother and daughter take a selfie photo with their cell phone
    Cute small white dog sleeps on blanket in front of warm fire-place — Stock Photo
    Cute small white dog sleeps on blanket in front of warm fire-place
    Monocyte in human blood, computer illustration. — Stock Photo
    Monocyte in human blood, computer illustration.
    Neural network showing synaptic terminals — Stock Photo
    Neural network showing synaptic terminals
    Abstract green colored cancer cell on white background, digital illustration. — Stock Photo
    Abstract green colored cancer cell on white background, digital illustration.
    Fertilisation of egg cell with spermatozoa, digital illustration. — Stock Photo
    Fertilisation of egg cell with spermatozoa, digital illustration.
    Red blood cells — Stock Photo
    Red blood cells
    Mixed-race bride taking selfie with mobile phone in boutique — Stock Photo
    Mixed-race bride taking selfie with mobile phone in boutique
    3d illustration of lymphocytes attacking cancer cells in human body. — Stock Photo
    3d illustration of lymphocytes attacking cancer cells in human body.
    Leukaemia blood cells — Stock Photo
    Leukaemia blood cells
    Side view of young woman using phone while lying on grass on a summer day — Stock Photo
    Side view of young woman using phone while lying on grass on a summer day
    Female scientist examining fluid in beaker, rear view — Stock Photo
    Female scientist examining fluid in beaker, rear view
    3d illustration of lymphocytes attacking cancer cells in human body. — Stock Photo
    3d illustration of lymphocytes attacking cancer cells in human body.
    Light micrograph showing the abnormal alterations of liver cells and tissues. Haematoxylin and eosin stain. — Stock Photo
    Light micrograph showing the abnormal alterations of liver cells and tissues. Haematoxylin and eosin stain.
    Hands of scientist using syringe and petri dish — Stock Photo
    Hands of scientist using syringe and petri dish
    T lymphocyte cells attached to cancer cell — Stock Photo
    T lymphocyte cells attached to cancer cell
    Blood vessel with blood cells — Stock Photo
    Blood vessel with blood cells
    3d illustration of cancer cells attacked and killed by lymphocytes. — Stock Photo
    3d illustration of cancer cells attacked and killed by lymphocytes.
    Businesswoman talking on smart phone at laptop in sunny cafe — Stock Photo
    Businesswoman talking on smart phone at laptop in sunny cafe
    Adipose tissue composed of adipocytes — Stock Photo
    Adipose tissue composed of adipocytes
    Blood droplet containing cells, conceptual illustration of hemophilia. — Stock Photo
    Blood droplet containing cells, conceptual illustration of hemophilia.
    Boy listening music with headphones while using phone — Stock Photo
    Boy listening music with headphones while using phone
    Nitrogen liquid splashing from a cryogenic tank container with frozen egg cells and embryos in fertility clinic — Stock Photo
    Nitrogen liquid splashing from a cryogenic tank container with frozen egg cells and embryos in fertility clinic
    Monocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Monocyte white blood cell in blood smear, digital illustration.
    Portrait of smiling businessman in white shirt walking near business building and talking on smartphone — Stock Photo
    Portrait of smiling businessman in white shirt walking near business building and talking on smartphone
    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.
    Protozoan Plasmodium falciparum, causative agent of tropical malaria, digital illustration. — Stock Photo
    Protozoan Plasmodium falciparum, causative agent of tropical malaria, digital illustration.
    Close up woman using smart phone in nightclub under neon lights — Stock Photo
    Close up woman using smart phone in nightclub under neon lights
    Colored illustration of cancer cell being attacked by white blood cells. — Stock Photo
    Colored illustration of cancer cell being attacked by white blood cells.
    Leukaemia blood cells — Stock Photo
    Leukaemia blood cells
    Teen girl walking happily through the streets of the city on a sunny day — Stock Photo
    Teen girl walking happily through the streets of the city on a sunny day