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    Three dinoflagellates (blue), coloured scanning electron micrograph (SEM). Dinoflagellates are unicellular protozoans. — Stock Photo
    Three dinoflagellates (blue), coloured scanning electron micrograph (SEM). Dinoflagellates are unicellular protozoans.
    Coloured scanning electron micrograph (SEM) of Pediculus humanus capitis, human head lice. P. humanus is divided into two subspecies; the head louse P. humanus capitis and the body louse P. humanus corporis — Stock Photo
    Coloured scanning electron micrograph (SEM) of Pediculus humanus capitis, human head lice. P. humanus is divided into two subspecies; the head louse P. humanus capitis and the body louse P. humanus corporis
    Doctor looking at brain mri scan on digital tablet at hospital — Stock Photo
    Doctor looking at brain mri scan on digital tablet at hospital
    Focused ethnic male using sharing app on smartphone and renting bike parked on city street — Stock Photo
    Focused ethnic male using sharing app on smartphone and renting bike parked on city street
    Hand of dentist in gloves and mask using modern equipment for making scan of teeth of female patient in dentist office — Stock Photo
    Hand of dentist in gloves and mask using modern equipment for making scan of teeth of female patient in dentist office
    Coloured scanning electron micrograph (SEM) of a foraminiferan microfossil from maldives beach sand. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a foraminiferan microfossil from maldives beach sand.
    Didinium sp. ciliate protozoa, coloured scanning electron micrograph (SEM). These tiny single-celled organisms are found in freshwater and marine habitats. They are predatory organism, feeding on other ciliate protozoans, mainly Paramecium — Stock Photo
    Didinium sp. ciliate protozoa, coloured scanning electron micrograph (SEM). These tiny single-celled organisms are found in freshwater and marine habitats. They are predatory organism, feeding on other ciliate protozoans, mainly Paramecium
    Illustration of abstract cancer cell with tentacles. — Stock Photo
    Illustration of abstract cancer cell with tentacles.
    Pinned fractured hip — Stock Photo
    Pinned fractured hip
    Woman in gloves and mask using modern equipment for scan of teeth of female patient in dentist office — Stock Photo
    Woman in gloves and mask using modern equipment for scan of teeth of female patient in dentist office
    Female patient going through x-ray test in hospital — Stock Photo
    Female patient going through x-ray test in hospital
    Hospital radiologist sitting at desk in front of CT scans. — Stock Photo
    Hospital radiologist sitting at desk in front of CT scans.
    Skull showing brain and neurons, coloured X-ray. — Stock Photo
    Skull showing brain and neurons, coloured X-ray.
    Wild mustard flower petal surface (Brassica kaber), coloured scanning electron micrograph (SEM). — Stock Photo
    Wild mustard flower petal surface (Brassica kaber), coloured scanning electron micrograph (SEM).
    Sarcoptic mange mites eggs — Stock Photo
    Sarcoptic mange mites eggs
    Colored scanning electron micrograph of mains cable damaged by mouse teeth. — Stock Photo
    Colored scanning electron micrograph of mains cable damaged by mouse teeth.
    Mannequin lying on a table under an x ray machine in a training college — Stock Photo
    Mannequin lying on a table under an x ray machine in a training college
    Illustration of abstract cancer cell with tentacles. — Stock Photo
    Illustration of abstract cancer cell with tentacles.
    Scanning electron micrograph of Brevibacteria on human feet causing odour. — Stock Photo
    Scanning electron micrograph of Brevibacteria on human feet causing odour.
    Pollen threads and brochosomes — Stock Photo
    Pollen threads and brochosomes
    Pensive male doctor with hand on chin examining MRI scan. — Stock Photo
    Pensive male doctor with hand on chin examining MRI scan.
    Human torso, MRI scan — Stock Photo
    Human torso, MRI scan
    Female patient receiving a ultrasound scan on the stomach in hospital — Stock Photo
    Female patient receiving a ultrasound scan on the stomach in hospital
    Colored scanning electron micrograph of stem cell-derived motor neuron cell. — Stock Photo
    Colored scanning electron micrograph of stem cell-derived motor neuron cell.
    Female worker scanning a bar code in factory — Stock Photo
    Female worker scanning a bar code in factory
    Allergenic pet dander on dog hair, colored scanning electron micrograph. — Stock Photo
    Allergenic pet dander on dog hair, colored scanning electron micrograph.
    Colored scanning electron micrograph of resting T-lymphocytes from human blood sample. — Stock Photo
    Colored scanning electron micrograph of resting T-lymphocytes from human blood sample.
    Eyelash follicle, coloured scanning electron micrograph (SEM). — Stock Photo
    Eyelash follicle, coloured scanning electron micrograph (SEM).
    Healthy liver, medical ultrasound scan. — Stock Photo
    Healthy liver, medical ultrasound scan.
    Lupin leaves, X-ray. — Stock Photo
    Lupin leaves, X-ray.
    Zebrafish young. Coloured scanning electron micrograph (SEM) of newly-hatched zebrafish (Danio rerio) young or fry. These fish are used to study embryonic development. The eyes (blue) are seen in the heads. Zebrafish eggs are transparent — Stock Photo
    Zebrafish young. Coloured scanning electron micrograph (SEM) of newly-hatched zebrafish (Danio rerio) young or fry. These fish are used to study embryonic development. The eyes (blue) are seen in the heads. Zebrafish eggs are transparent
    House dust mites — Stock Photo
    House dust mites
    Colored scanning electron micrograph of resting T-lymphocytes from human blood sample. — Stock Photo
    Colored scanning electron micrograph of resting T-lymphocytes from human blood sample.
    Blood vessel in the lung — Stock Photo
    Blood vessel in the lung
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Facial recognition, computer illustration — Stock Photo
    Facial recognition, computer illustration
    Male sex cell — Stock Photo
    Male sex cell
    Surgeon reviewing MRI scans at medical clinic — Stock Photo
    Surgeon reviewing MRI scans at medical clinic
    Close-up of female doctor in uniform looking at x-ray image in room — Stock Photo
    Close-up of female doctor in uniform looking at x-ray image in room
    Colored scanning electron micrograph of sectioned seminiferous tubule, site of sperm production in human testes. — Stock Photo
    Colored scanning electron micrograph of sectioned seminiferous tubule, site of sperm production in human testes.
    Cannabis plant. Coloured scanning electron micrograph (SEM) of the surface of a cannabis (Cannabis sativa) plant. The pointed hairs are called lithocyst cells. They contain cystoliths (calcium carbonate crystals) — Stock Photo
    Cannabis plant. Coloured scanning electron micrograph (SEM) of the surface of a cannabis (Cannabis sativa) plant. The pointed hairs are called lithocyst cells. They contain cystoliths (calcium carbonate crystals)
    Male doctor examining patient in hospital — Stock Photo
    Male doctor examining patient in hospital
    Colored scanning electron micrograph of cancellous bone tissue from starling bird skull. — Stock Photo
    Colored scanning electron micrograph of cancellous bone tissue from starling bird skull.
    Doctor examining brain mri scan on computer at hospital — Stock Photo
    Doctor examining brain mri scan on computer at hospital
    Human lip. Coloured scanning electron micrograph (SEM) of a human lip, showing sweat gland openings on the drier external lip surface. These openings (pores) release sweat onto the surface of the skin — Stock Photo
    Human lip. Coloured scanning electron micrograph (SEM) of a human lip, showing sweat gland openings on the drier external lip surface. These openings (pores) release sweat onto the surface of the skin
    Illustration of abstract cancer cell with tentacles. — Stock Photo
    Illustration of abstract cancer cell with tentacles.
    Closeup of anonymous female patient using pulseoximeter to measure level of oxygen in blood while putting device on finger in room — Stock Photo
    Closeup of anonymous female patient using pulseoximeter to measure level of oxygen in blood while putting device on finger in room
    Crop medical practitioner making sonogram to happy pregnant woman during work in contemporary fertility clinic — Stock Photo
    Crop medical practitioner making sonogram to happy pregnant woman during work in contemporary fertility clinic
    Doctors interacting with patient in scanning room at hospital — Stock Photo
    Doctors interacting with patient in scanning room at hospital
    Doctor using x-ray machine to examining patient in hospital — Stock Photo
    Doctor using x-ray machine to examining patient in hospital
    Coloured scanning electron micrograph (SEM) of the shell (test) of a Globigerina sp. planktonic foraminiferan. — Stock Photo
    Coloured scanning electron micrograph (SEM) of the shell (test) of a Globigerina sp. planktonic foraminiferan.
    Didinium sp. ciliate protozoa, coloured scanning electron micrograph (SEM). These tiny single-celled organisms are found in freshwater and marine habitats. They are predatory organism, feeding on other ciliate protozoans, mainly Paramecium — Stock Photo
    Didinium sp. ciliate protozoa, coloured scanning electron micrograph (SEM). These tiny single-celled organisms are found in freshwater and marine habitats. They are predatory organism, feeding on other ciliate protozoans, mainly Paramecium
    Female dentist demonstrating teeth scan on laptop screen to little boy in modern clinic — Stock Photo
    Female dentist demonstrating teeth scan on laptop screen to little boy in modern clinic
    Woman scanning the barcode of a candle — Stock Photo
    Woman scanning the barcode of a candle
    Green colored dust mite, digital illustration. — Stock Photo
    Green colored dust mite, digital illustration.
    Close-up of x-ray monitor in the hospital — Stock Photo
    Close-up of x-ray monitor in the hospital
    Male patient entering MRI scanner. — Stock Photo
    Male patient entering MRI scanner.
    Chinese hibiscus pollen — Stock Photo
    Chinese hibiscus pollen
    Dense connective tissue, coloured scanning electron micrograph (SEM). — Stock Photo
    Dense connective tissue, coloured scanning electron micrograph (SEM).
    Passion flower pollen — Stock Photo
    Passion flower pollen