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    Colored scanning electron micrograph of breast cancer cell. — Stock Photo
    Colored scanning electron micrograph of breast cancer cell.
    Diatoms single-celled algae — Stock Photo
    Diatoms single-celled algae
    Portrait of smiling doctor standing in x-ray room at hospital — Stock Photo
    Portrait of smiling doctor standing in x-ray room at hospital
    Computer enhanced false-colour Magnetic Resonance Image (MRI) of a mid-sagittal section through the head of a normal 46 year-old woman, showing structures of the brain, spine and facial tissues. — Stock Photo
    Computer enhanced false-colour Magnetic Resonance Image (MRI) of a mid-sagittal section through the head of a normal 46 year-old woman, showing structures of the brain, spine and facial tissues.
    Coloured scanning electron micrograph of cultured cancer cell from human cervix showing numerous microvilli. — Stock Photo
    Coloured scanning electron micrograph of cultured cancer cell from human cervix showing numerous microvilli.
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    Long Hair Chinese woman holding a mug — Stock Photo
    Long Hair Chinese woman holding a mug
    Mixed oral bacteria — Stock Photo
    Mixed oral bacteria
    Fossilised fragment of a coccolithotrope skeleton — Stock Photo
    Fossilised fragment of a coccolithotrope skeleton
    Cultured cancer cells — Stock Photo
    Cultured cancer cells
    Patient entering mri scanning machine at hospital — Stock Photo
    Patient entering mri scanning machine at hospital
    Chest, neck and head arteries — Stock Photo
    Chest, neck and head arteries
    Series of MRI brain scans — Stock Photo
    Series of MRI brain scans
    Smiling doctor consoling patient before mri scanning at hospital — Stock Photo
    Smiling doctor consoling patient before mri scanning at hospital
    Streptomyces coelicoflavus bacteria — Stock Photo
    Streptomyces coelicoflavus bacteria
    Colored scanning electron micrograph of rod-shaped, gram-negative bacteria Escherichia coli of human intestine. — Stock Photo
    Colored scanning electron micrograph of rod-shaped, gram-negative bacteria Escherichia coli of human intestine.
    Scanning electron micrograph of bacteria cultured from sample of human faeces. — Stock Photo
    Scanning electron micrograph of bacteria cultured from sample of human faeces.
    Cashmere wool fibres, coloured scanning electron micrograph (SEM). — Stock Photo
    Cashmere wool fibres, coloured scanning electron micrograph (SEM).
    Coloured scanning electron micrograph (SEM) of an anther (male reproductive part) from a bay tree (Laurus nobilis) flower. — Stock Photo
    Coloured scanning electron micrograph (SEM) of an anther (male reproductive part) from a bay tree (Laurus nobilis) flower.
    From above of crop unrecognizable male using smartphone and scanning QR code of menu of restaurant — Stock Photo
    From above of crop unrecognizable male using smartphone and scanning QR code of menu of restaurant
    Pearl oyster shell, X-ray. — Stock Photo
    Pearl oyster shell, X-ray.
    Human red blood cells and platelets — Stock Photo
    Human red blood cells and platelets
    Coloured computed tomography (CT) scan of the brain of a 25 year old patient with a meningioma (blue). — Stock Photo
    Coloured computed tomography (CT) scan of the brain of a 25 year old patient with a meningioma (blue).
    Female airport staff using mobile phone to scan the passport at airport terminal — Stock Photo
    Female airport staff using mobile phone to scan the passport at airport terminal
    Female doctor in sterile mask and blue glove using ultrasound scanner while examining cheerful pregnant woman and looking at computer screen in hospital — Stock Photo
    Female doctor in sterile mask and blue glove using ultrasound scanner while examining cheerful pregnant woman and looking at computer screen in hospital
    Doctor looking at brain mri scan on digital tablet and patient entering mri scanning machine at hospital — Stock Photo
    Doctor looking at brain mri scan on digital tablet and patient entering mri scanning machine at hospital
    Human sperm cell, coloured scanning electron micrograph (SEM). — Stock Photo
    Human sperm cell, coloured scanning electron micrograph (SEM).
    Fungal cells with sporangia and spores — Stock Photo
    Fungal cells with sporangia and spores
    Embryonic stem cells — Stock Photo
    Embryonic stem cells
    Dividing prostate cancer cells, coloured scanning electron micrograph. — Stock Photo
    Dividing prostate cancer cells, coloured scanning electron micrograph.
    Sarcoptic mange mites eggs — Stock Photo
    Sarcoptic mange mites eggs
    Human sperm cell, coloured scanning electron micrograph (SEM). — Stock Photo
    Human sperm cell, coloured scanning electron micrograph (SEM).
    Coloured scanning electron micrograph (SEM) of a suture in a dog's skin wound. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a suture in a dog's skin wound.
    Shell of a radiolarian — Stock Photo
    Shell of a radiolarian
    Scanning electron micrograph of Brevibacteria on human feet causing odour. — Stock Photo
    Scanning electron micrograph of Brevibacteria on human feet causing odour.
    Red blood cells. Coloured scanning electron micrograph (SEM) of red blood cells (RBCs, erythrocytes). Red blood cells are biconcave, disc-shaped cells that transport oxygen from the lungs to body cells — Stock Photo
    Red blood cells. Coloured scanning electron micrograph (SEM) of red blood cells (RBCs, erythrocytes). Red blood cells are biconcave, disc-shaped cells that transport oxygen from the lungs to body cells
    Fossilised fragment of a coccolithotrope skeleton — Stock Photo
    Fossilised fragment of a coccolithotrope skeleton
    Colorectal cancer cell dividing — Stock Photo
    Colorectal cancer cell dividing
    Healthy lungs of a 30 year old patient — Stock Photo
    Healthy lungs of a 30 year old patient
    Red blood cells and platelets — Stock Photo
    Red blood cells and platelets
    Pollen grains of a common daisy — Stock Photo
    Pollen grains of a common daisy
    Streptomyces coelicoflavus bacteria — Stock Photo
    Streptomyces coelicoflavus bacteria
    Scanning electron microscopy of DNA molecules and red and white blood cells. — Stock Photo
    Scanning electron microscopy of DNA molecules and red and white blood cells.
    Cropped unrecognizable pregnant female inspecting sonogram picture while lying on bed in ward of modern fertility clinic — Stock Photo
    Cropped unrecognizable pregnant female inspecting sonogram picture while lying on bed in ward of modern fertility clinic
    Male doctor using x-ray machine to examining patient in hospital — Stock Photo
    Male doctor using x-ray machine to examining patient in hospital
    Woman in mask and doctor uniform making scan of teeth of little boy while working in dentist clinic — Stock Photo
    Woman in mask and doctor uniform making scan of teeth of little boy while working in dentist clinic
    Dividing prostate gland cancer cells, colored scanning electron micrograph. — Stock Photo
    Dividing prostate gland cancer cells, colored scanning electron micrograph.
    Phytoplankton diatom Coscinodiscus sp — Stock Photo
    Phytoplankton diatom Coscinodiscus sp
    Eupodiscus sculptus diatom — Stock Photo
    Eupodiscus sculptus diatom
    Crop black female medic standing near window and examining x ray scan while working in clinic — Stock Photo
    Crop black female medic standing near window and examining x ray scan while working in clinic
    Fractured ankle bone, computer illustration — Stock Photo
    Fractured ankle bone, computer illustration
    Close-up of x-ray machine in hospital — Stock Photo
    Close-up of x-ray machine in hospital
    Coloured scanning electron micrograph of 293T cell in early stage of programmed apoptosis cell death. — Stock Photo
    Coloured scanning electron micrograph of 293T cell in early stage of programmed apoptosis cell death.
    Bacteriastrum sp. diatom algae — Stock Photo
    Bacteriastrum sp. diatom algae
    Doctors using x-ray machine to examining patient in hospital — Stock Photo
    Doctors using x-ray machine to examining patient in hospital
    Coloured scanning electron micrograph (SEM) of immature dog sperm. — Stock Photo
    Coloured scanning electron micrograph (SEM) of immature dog sperm.
    Lavandula, X-ray, radiology scan — Stock Photo
    Lavandula, X-ray, radiology scan
    Fly head anatomy — Stock Photo
    Fly head anatomy
    Orchid (Phalaenopsis sp.) petal, coloured scanning electron micrograph (SEM). — Stock Photo
    Orchid (Phalaenopsis sp.) petal, coloured scanning electron micrograph (SEM).
    Ant head. Coloured scanning electron micrograph (SEM) of the head of an ant (family Formicidae). showing its large compound eyes (blue) and jaws. Magnification: x50 when printed 10 centimetres wide. — Stock Photo
    Ant head. Coloured scanning electron micrograph (SEM) of the head of an ant (family Formicidae). showing its large compound eyes (blue) and jaws. Magnification: x50 when printed 10 centimetres wide.