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    Close-up of hands of scientist holding test tube. — Stock Photo
    Close-up of hands of scientist holding test tube.
    Still life of microscope on laboratory bench. — Stock Photo
    Still life of microscope on laboratory bench.
    Female scientist pipetting sample into microcentrifuge tubes ready for automated analysis while biotechnology research. — Stock Photo
    Female scientist pipetting sample into microcentrifuge tubes ready for automated analysis while biotechnology 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.
    Female psychologist helping boy coloring shapes with colorful pens for developmental psychology test. — Stock Photo
    Female psychologist helping boy coloring shapes with colorful pens for developmental psychology test.
    Close-up of blood sample in tube and syringe. — Stock Photo
    Close-up of blood sample in tube and syringe.
    Cropped view of doctor holding vial of blood for testing. — Stock Photo
    Cropped view of doctor holding vial of blood for testing.
    Blood sample in kidney dish with urine sample on table. — Stock Photo
    Blood sample in kidney dish with urine sample on table.
    Doctor using a glucometer to take a blood glucose reading from a patient. — Stock Photo
    Doctor using a glucometer to take a blood glucose reading from a patient.
    Coronavirus COVID-19 virus disease pandemic outbreak,UK NHS EMS key me — Stock Photo
    Coronavirus COVID-19 virus disease pandemic outbreak,UK NHS EMS key me
    Optician using slit lamp for eye examination preteen girl. — Stock Photo
    Optician using slit lamp for eye examination preteen girl.
    Platelets in blood vessel — Stock Photo
    Platelets in blood vessel
    Blood samples in a multi well plate during a clinical trial. — Stock Photo
    Blood samples in a multi well plate during a clinical trial.
    Medical worker gloved hands holding test stick in urine sample tube. — Stock Photo
    Medical worker gloved hands holding test stick in urine sample tube.
    Preschooler boy undergoing logic cards test for developmental psychology test in female psychologist office. — Stock Photo
    Preschooler boy undergoing logic cards test for developmental psychology test in female psychologist office.
    Patient undergoing patch test in allergy clinic. — Stock Photo
    Patient undergoing patch test in allergy clinic.
    Technician pipetting samples into cartridges for solid phase extraction. — Stock Photo
    Technician pipetting samples into cartridges for solid phase extraction.
    Blood in human urine in sample pots, studio shot. — Stock Photo
    Blood in human urine in sample pots, studio shot.
    Drug research and clinical testing — Stock Photo
    Drug research and clinical testing
    Glass slide containing human sample under light microscope for medical testing. — Stock Photo
    Glass slide containing human sample under light microscope for medical testing.
    Close-up of multichannel pipette with green liquid on multiwell plate in laboratory. — Stock Photo
    Close-up of multichannel pipette with green liquid on multiwell plate in laboratory.
    Nurse takes sample for covid-19 — Stock Photo
    Nurse takes sample for covid-19
    DNA swab on genetic test results. — Stock Photo
    DNA swab on genetic test results.
    Vials of blood in laboratory centrifuge testing for coronavirus infection, conceptual digital illustration. — Stock Photo
    Vials of blood in laboratory centrifuge testing for coronavirus infection, conceptual digital illustration.
    Empty bed in hospital room — Stock Photo
    Empty bed in hospital room
    Close-up of petri dish and dropping pipette for genetic research. — Stock Photo
    Close-up of petri dish and dropping pipette for genetic research.
    Hands of scientist using syringe and petri dish — Stock Photo
    Hands of scientist using syringe and petri dish
    Scientist hand holding micro-centrifuge tube containing biological sample. — Stock Photo
    Scientist hand holding micro-centrifuge tube containing biological sample.
    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.
    Doctor giving young girl finger prick test. — Stock Photo
    Doctor giving young girl finger prick test.
    Ophthalmologist examining female patient with slit lamp in clinic. — Stock Photo
    Ophthalmologist examining female patient with slit lamp in clinic.
    Female patient undergoing auto refractometer eye examination in ophthalmology clinic. — Stock Photo
    Female patient undergoing auto refractometer eye examination in ophthalmology clinic.
    Female scientist pipetting sample into microcentrifuge tubes ready for automated analysis while biotechnology research. — Stock Photo
    Female scientist pipetting sample into microcentrifuge tubes ready for automated analysis while biotechnology research.
    Doctor reading the results of blood test while holding blood sample. — Stock Photo
    Doctor reading the results of blood test while holding blood sample.
    Close-up of microcentrifuge tubes with biologist in background. — Stock Photo
    Close-up of microcentrifuge tubes with biologist in background.
    Cropped view of lab technician carrying cell-based testing kit in bioengineering laboratory. — Stock Photo
    Cropped view of lab technician carrying cell-based testing kit in bioengineering laboratory.
    Ophthalmologist using auto refractometer eye examination equipment on boy in clinic. — Stock Photo
    Ophthalmologist using auto refractometer eye examination equipment on boy in clinic.
    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
    Elementary age boy undergoing sight examination with slit lamp in ophthalmology clinic. — Stock Photo
    Elementary age boy undergoing sight examination with slit lamp in ophthalmology clinic.
    Close-up of antibiotic testing in petri dish. — Stock Photo
    Close-up of antibiotic testing in petri dish.
    Forensic DNA autoradiogram — Stock Photo
    Forensic DNA autoradiogram
    Ophthalmologist examining boy eyes with slit lamp in clinic. — Stock Photo
    Ophthalmologist examining boy eyes with slit lamp in clinic.
    Doctor preparing HIV test sample for testing in laboratory. — Stock Photo
    Doctor preparing HIV test sample for testing in laboratory.
    Mature woman testing blood pressure with machine. — Stock Photo
    Mature woman testing blood pressure with machine.
    Scientists preparing glass slide with sample in laboratory. — Stock Photo
    Scientists preparing glass slide with sample in laboratory.
    Female scientist working in laboratory. — Stock Photo
    Female scientist working in laboratory.
    Close-up view of medical sample with genetic test results. — Stock Photo
    Close-up view of medical sample with genetic test results.
    Optician using phoropter for eye examination preteen girl. — Stock Photo
    Optician using phoropter for eye examination preteen girl.
    Elementary age boy undergoing sight examination with slit lamp in ophthalmology clinic. — Stock Photo
    Elementary age boy undergoing sight examination with slit lamp in ophthalmology clinic.
    Close-up of hands of scientist placing slide with human sample under light microscope for medical testing. — Stock Photo
    Close-up of hands of scientist placing slide with human sample under light microscope for medical testing.
    Happy black woman in optometry cabinet during study of the eyesight — Stock Photo
    Happy black woman in optometry cabinet during study of the eyesight
    Close-up of female hand using pen-like lancing device for prick test. — Stock Photo
    Close-up of female hand using pen-like lancing device for prick test.
    Boy wearing headphones as playing with building blocks while hearing test, female doctor in background. — Stock Photo
    Boy wearing headphones as playing with building blocks while hearing test, female doctor in background.
    Close-up of human urine, blood and various medical samples in test tubes while screening in medical lab. — Stock Photo
    Close-up of human urine, blood and various medical samples in test tubes while screening in medical lab.
    Technician hand holding blood sample ready for testing in laboratory. — Stock Photo
    Technician hand holding blood sample ready for testing in laboratory.
    Hands of immunologist performing skin prick allergy testing on boy. — Stock Photo
    Hands of immunologist performing skin prick allergy testing on boy.
    Drug research and clinical testing — Stock Photo
    Drug research and clinical testing
    Close-up of rack of sample tubes with blood for analysis. — Stock Photo
    Close-up of rack of sample tubes with blood for analysis.
    Close-up of multichannel pipette with green liquid on multiwell plate in laboratory. — Stock Photo
    Close-up of multichannel pipette with green liquid on multiwell plate in laboratory.
    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