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    Ophthalmologist examining boy eyes with slit lamp in clinic. — Stock Photo
    Ophthalmologist examining boy eyes with slit lamp in clinic.
    Female medical specialist in protective uniform, latex gloves and face mask doing mouth swab test with cotton bud on African American female patient in clinic during coronavirus outbreak — Stock Photo
    Female medical specialist in protective uniform, latex gloves and face mask doing mouth swab test with cotton bud on African American female patient in clinic during coronavirus outbreak
    Close-up of rack of sample tubes with blood for analysis. — Stock Photo
    Close-up of rack of sample tubes with blood for analysis.
    Female doctor testing urine with stick, close-up. — Stock Photo
    Female doctor testing urine with stick, close-up.
    Crop concentrated female scientist in white robe and gloves conducting chemical experiment with substance and syringe while working in modern laboratory — Stock Photo
    Crop concentrated female scientist in white robe and gloves conducting chemical experiment with substance and syringe while working in modern laboratory
    Attentive university student doing a chemical experiment in laboratory — Stock Photo
    Attentive university student doing a chemical experiment in laboratory
    Dentist filling a patient's tooth — Stock Photo
    Dentist filling a patient's tooth
    Biologist with protective gloves performing a coronavirus test on a person in a car — Stock Photo
    Biologist with protective gloves performing a coronavirus test on a person in a car
    Side view focused male expert in lab coat gloves examining samples through powerful microscope lenses while working in modern equipped laboratory — Stock Photo
    Side view focused male expert in lab coat gloves examining samples through powerful microscope lenses while working in modern equipped laboratory
    Close-up of pipetting sample into multiwell plate for analysis in laboratory. — Stock Photo
    Close-up of pipetting sample into multiwell plate for analysis in laboratory.
    Rice in test tube, studio shot. — Stock Photo
    Rice in test tube, studio shot.
    Genetic research, conceptual illustration. DNA (deoxyribonucleic acid) molecule in blood sample tubes in a centrifuge. — Stock Photo
    Genetic research, conceptual illustration. DNA (deoxyribonucleic acid) molecule in blood sample tubes in a centrifuge.
    Close-up of pipette pipetting into microcentrifuge tubes in pathogenic laboratory. — Stock Photo
    Close-up of pipette pipetting into microcentrifuge tubes in pathogenic laboratory.
    Tubes for biological test in rack on blue background. — Stock Photo
    Tubes for biological test in rack on blue background.
    Close-up of hand taking lens for eye test from rack. — Stock Photo
    Close-up of hand taking lens for eye test from rack.
    Preteen girl breathing into peak flow meter and looking in camera. — Stock Photo
    Preteen girl breathing into peak flow meter and looking in camera.
    Optometrist examining patient eyes with phoropter in clinic — Stock Photo
    Optometrist examining patient eyes with phoropter in clinic
    University student doing experiment on microscope in laboratory at college — Stock Photo
    University student doing experiment on microscope in laboratory at college
    Scientist holding tomato piece with tweezers for food research. — Stock Photo
    Scientist holding tomato piece with tweezers for food research.
    Preschooler boy coloring shapes with colorful pens for developmental psychology test in psychologist office. — Stock Photo
    Preschooler boy coloring shapes with colorful pens for developmental psychology test in psychologist office.
    Researcher in white costume writing on tablet at laboratory. — Stock Photo
    Researcher in white costume writing on tablet at laboratory.
    Young asian college students studying together — Stock Photo
    Young asian college students studying together
    Close-up of senior woman adjusting eyeglasses in clinic — Stock Photo
    Close-up of senior woman adjusting eyeglasses in clinic
    Preschooler boy coloring shapes with colorful pens for developmental psychology test in psychologist office. — Stock Photo
    Preschooler boy coloring shapes with colorful pens for developmental psychology test in psychologist office.
    Preschooler boy coloring shapes with colorful pens for developmental psychology test in psychologist office. — Stock Photo
    Preschooler boy coloring shapes with colorful pens for developmental psychology test in psychologist office.
    Female teacher and students conducting chemical experiment — Stock Photo
    Female teacher and students conducting chemical experiment
    Female immunologist performing skin prick allergy testing on preschooler boy. — Stock Photo
    Female immunologist performing skin prick allergy testing on preschooler boy.
    DNA testing using saliva sample. — Stock Photo
    DNA testing using saliva sample.
    Female researcher pipetting liquid into test tube. — Stock Photo
    Female researcher pipetting liquid into test tube.
    Female scientist in laboratory looking at glass flask with dissolved samples of soil. — Stock Photo
    Female scientist in laboratory looking at glass flask with dissolved samples of soil.
    DNA home test kit. — Stock Photo
    DNA home test kit.
    Doctor using x-ray machine to examining patient in hospital — Stock Photo
    Doctor using x-ray machine to examining patient in hospital
    Urine sample with test strip on white background. — Stock Photo
    Urine sample with test strip on white background.
    Radiographers taking computed tomography scan of patient. — Stock Photo
    Radiographers taking computed tomography scan of patient.
    Two scientists doing experiment in lab — Stock Photo
    Two scientists doing experiment in lab
    Side view of cropped unrecognizable otolaryngologist in latex gloves checking throat of patient with sterile spatula and flashlight in hospital — Stock Photo
    Side view of cropped unrecognizable otolaryngologist in latex gloves checking throat of patient with sterile spatula and flashlight in hospital
    Girl having eye test in clinic with doctor. — Stock Photo
    Girl having eye test in clinic with doctor.
    Bacterial colonies on agar plates — Stock Photo
    Bacterial colonies on agar plates
    Agronomy technician pouring water in soil samples. — Stock Photo
    Agronomy technician pouring water in soil samples.
    Schoolboy doing chemistry experiment in school laboratory. — Stock Photo
    Schoolboy doing chemistry experiment in school laboratory.
    Girl students conducting scientific experiment behind test tubes and bottles in laboratory classroom — Stock Photo
    Girl students conducting scientific experiment behind test tubes and bottles in laboratory classroom
    Green chili pepper in test tube, studio shot. — Stock Photo
    Green chili pepper in test tube, studio shot.
    Female bioarchaeologist analyzing micro tube with human osteological material in laboratory. — Stock Photo
    Female bioarchaeologist analyzing micro tube with human osteological material in laboratory.
    Female doctor putting headphones on boy having hearing test. — Stock Photo
    Female doctor putting headphones on boy having hearing test.
    Scientist holding petri dish with biohazard warning in microbiology lab. — Stock Photo
    Scientist holding petri dish with biohazard warning in microbiology lab.
    Coronavirus vaccine flask near blood test and syringe on pink background covered with confetti — Stock Photo
    Coronavirus vaccine flask near blood test and syringe on pink background covered with confetti
    Chemist setting up vacuum pump in pharmaceutical laboratory. — Stock Photo
    Chemist setting up vacuum pump in pharmaceutical laboratory.
    Scientist in white uniform putting on protective mask — Stock Photo
    Scientist in white uniform putting on protective mask
    Crop unrecognizable biologist in uniform with dropper and rack with tips at table in cannabis laboratory — Stock Photo
    Crop unrecognizable biologist in uniform with dropper and rack with tips at table in cannabis laboratory
    Laboratory with scientific equipment to test and analyse products, drinks industry, Tasting and health and safety. — Stock Photo
    Laboratory with scientific equipment to test and analyse products, drinks industry, Tasting and health and safety.
    Doctor using a lance to take a finger prick blood sample from a patient. — Stock Photo
    Doctor using a lance to take a finger prick blood sample from a patient.
    Attentive female scientist using pipette in laboratory — Stock Photo
    Attentive female scientist using pipette in laboratory
    Water department technician coiling hose used to flush hydrant — Stock Photo
    Water department technician coiling hose used to flush hydrant
    Curious students conducting scientific experiment, watching liquid in vial in laboratory classroom — Stock Photo
    Curious students conducting scientific experiment, watching liquid in vial in laboratory classroom
    Group of laboratory test tubes. — Stock Photo
    Group of laboratory test tubes.
    Female researcher studying DNA autoradiogram. — Stock Photo
    Female researcher studying DNA autoradiogram.
    Female doctor in protective face mask taking swab test of woman in clinic during covid-19 outbreak. healthcare services, illness prevention and pandemic. — Stock Photo
    Female doctor in protective face mask taking swab test of woman in clinic during covid-19 outbreak. healthcare services, illness prevention and pandemic.
    Close-up of green chemical sample in glass phial. — Stock Photo
    Close-up of green chemical sample in glass phial.
    School in Village of Himba tribe — Stock Photo
    School in Village of Himba tribe
    Scientist checking a solution in conical flask at lab — Stock Photo
    Scientist checking a solution in conical flask at lab