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    Female scientist using microscope in laboratory. — Stock Photo
    Female scientist using microscope in laboratory.
    Female laboratory assistant standing with arms folded. — Stock Photo
    Female laboratory assistant standing with arms folded.
    Female laboratory assistant using equipment. — Stock Photo
    Female laboratory assistant using equipment.
    Male laboratory assistant holding test tube rack. — Stock Photo
    Male laboratory assistant holding test tube rack.
    Female scientist working in laboratory. — Stock Photo
    Female scientist working in laboratory.
    Female laboratory assistant using equipment. — Stock Photo
    Female laboratory assistant using equipment.
    Male laboratory assistant wearing glasses. — Stock Photo
    Male laboratory assistant wearing glasses.
    Radiologist making notes while patient lying in CT scanner. — Stock Photo
    Radiologist making notes while patient lying in CT scanner.
    Radiologist recording results of CT scanning. — Stock Photo
    Radiologist recording results of CT scanning.
    Male laboratory assistant wearing safety goggles. — Stock Photo
    Male laboratory assistant wearing safety goggles.
    Male scientist using microscope, close-up. — Stock Photo
    Male scientist using microscope, close-up.
    Female scientist working in laboratory. — Stock Photo
    Female scientist working in laboratory.
    Male scientist in protective mask using microscope. — Stock Photo
    Male scientist in protective mask using microscope.
    Scientist hand using pipette, close-up. — Stock Photo
    Scientist hand using pipette, close-up.
    Male scientist wearing surgical cap using microscope. — Stock Photo
    Male scientist wearing surgical cap using microscope.
    Female scientist using equipment in laboratory. — Stock Photo
    Female scientist using equipment in laboratory.
    Laboratory assistant holding chemical flask with blue liquid. — Stock Photo
    Laboratory assistant holding chemical flask with blue liquid.
    Female and male scientists working in laboratory. — Stock Photo
    Female and male scientists working in laboratory.
    Female laboratory assistant holding chemical flask. — Stock Photo
    Female laboratory assistant holding chemical flask.
    Chinese children goofing around in museum — Stock Photo
    Chinese children goofing around in museum
    Radiologist recording results of CT scanning. — Stock Photo
    Radiologist recording results of CT scanning.
    Hospital radiologist pointing at CT scans. — Stock Photo
    Hospital radiologist pointing at CT scans.
    Female radiologist examining equipment. — Stock Photo
    Female radiologist examining equipment.
    Hospital radiologist sitting at desk in front of CT scans. — Stock Photo
    Hospital radiologist sitting at desk in front of CT scans.
    Radiologist talking to patient in CT scanner. — Stock Photo
    Radiologist talking to patient in CT scanner.
    BENIN, AFRICA - AUGUST 31, 2017: Black man sitting in hospital and looking over shoulder at camera while staff making treatment. — Stock Photo
    BENIN, AFRICA - AUGUST 31, 2017: Black man sitting in hospital and looking over shoulder at camera while staff making treatment.
    Female scientist standing in research laboratory. — Stock Photo
    Female scientist standing in research laboratory.
    Space shuttle indoor green — Stock Photo
    Space shuttle indoor green
    BENIN, AFRICA - AUGUST 30, 2017: Bottom view of doctor vaccinating person at hospital — Stock Photo
    BENIN, AFRICA - AUGUST 30, 2017: Bottom view of doctor vaccinating person at hospital
    Hospital radiologist sitting at desk in front of CT scans. — Stock Photo
    Hospital radiologist sitting at desk in front of CT scans.
    Fibroblast cell, coloured scanning electron micrograph (SEM). — Stock Photo
    Fibroblast cell, coloured scanning electron micrograph (SEM).
    Female scientist opening cabinet in research laboratory. — Stock Photo
    Female scientist opening cabinet in research laboratory.
    Female radiologist studying CT scans on monitors. — Stock Photo
    Female radiologist studying CT scans on monitors.
    Coloured scanning electron micrograph (SEM) view of the top surface of the organ of Corti in the cochlea of the inner ear. — Stock Photo
    Coloured scanning electron micrograph (SEM) view of the top surface of the organ of Corti in the cochlea of the inner ear.
    Female radiologist studying CT scans on monitors. — Stock Photo
    Female radiologist studying CT scans on monitors.
    Space shuttle indoor green — Stock Photo
    Space shuttle indoor green
    Coloured scanning electron micrograph (SEM) of the surface of a squamous epithelial cell from the ureter. — Stock Photo
    Coloured scanning electron micrograph (SEM) of the surface of a squamous epithelial cell from the ureter.
    Kiwi fruit (Actinidia deliciosa) pollen grain, coloured scanning electron micrograph (SEM). — Stock Photo
    Kiwi fruit (Actinidia deliciosa) pollen grain, coloured scanning electron micrograph (SEM).
    Space shuttle indoor green — Stock Photo
    Space shuttle indoor green
    Wind Turbine Southern Alberta Canada — Stock Photo
    Wind Turbine Southern Alberta Canada
    Solar furnace designed by Antoine Lavoisier — Stock Photo
    Solar furnace designed by Antoine Lavoisier
    Woman looking Space shuttle — Stock Photo
    Woman looking Space shuttle
    Kiwi fruit (Actinidia deliciosa) pollen grain, coloured scanning electron micrograph (SEM). — Stock Photo
    Kiwi fruit (Actinidia deliciosa) pollen grain, coloured scanning electron micrograph (SEM).
    Fibroblast cell, coloured scanning electron micrograph (SEM). — Stock Photo
    Fibroblast cell, coloured scanning electron micrograph (SEM).
    Woman looking Space shuttle — Stock Photo
    Woman looking Space shuttle
    Doctors hands making a research in laboratory — Stock Photo
    Doctors hands making a research in laboratory
    Time Delay Of Headlights On Mountain Road — Stock Photo
    Time Delay Of Headlights On Mountain Road
    Solar furnace designed by Antoine Lavoisier — Stock Photo
    Solar furnace designed by Antoine Lavoisier
    La Calahorra, Granada Province, Spain — Stock Photo
    La Calahorra, Granada Province, Spain
    Doctors hands making a research in laboratory — Stock Photo
    Doctors hands making a research in laboratory
    Red blood cells — Stock Photo
    Red blood cells
    Windmills Generating Electricity — Stock Photo
    Windmills Generating Electricity
    Forensic investigation of computer lap top — Stock Photo
    Forensic investigation of computer lap top
    Forensic investigation of computer lap top — Stock Photo
    Forensic investigation of computer lap top
    Forensic investigation of computer lap top — Stock Photo
    Forensic investigation of computer lap top
    Forensic investigation of computer lap top — Stock Photo
    Forensic investigation of computer lap top
    Alternative Energy Generators — Stock Photo
    Alternative Energy Generators
    Body of cat flea — Stock Photo
    Body of cat flea
    Forensic investigation of computer lap top — Stock Photo
    Forensic investigation of computer lap top
    Illustration of Lactobacillus colony — Stock Photo
    Illustration of Lactobacillus colony