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    Blood samples tubes in polystyrene tray. — Stock Photo
    Blood samples tubes in polystyrene tray.
    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 laboratory technician holding tube with blood sample in gloved hand. — Stock Photo
    Close-up of laboratory technician holding tube with blood sample in gloved hand.
    Radiographers taking computed tomography scan of patient. — Stock Photo
    Radiographers taking computed tomography scan of patient.
    Patient undergoing applanation tonometry and eye pressure test in ophthalmology clinic. — Stock Photo
    Patient undergoing applanation tonometry and eye pressure test in ophthalmology clinic.
    Scientist using pipette and scales at laboratory — Stock Photo
    Scientist using pipette and scales at laboratory
    Doctor using x-ray machine to examining patient in hospital — Stock Photo
    Doctor using x-ray machine to examining patient in hospital
    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.
    Ophthalmologist performing visual field testing at female patient. — Stock Photo
    Ophthalmologist performing visual field testing at female patient.
    Top view of mosaic or pattern of positive blood tests and syringe over blue background. — Stock Photo
    Top view of mosaic or pattern of positive blood tests and syringe over blue background.
    Eye test equipment in a laboratory — Stock Photo
    Eye test equipment in a laboratory
    Hospital radiologist sitting at desk in front of CT scans. — Stock Photo
    Hospital radiologist sitting at desk in front of CT scans.
    Chinese doctor showing x-ray test result to senior couple — Stock Photo
    Chinese doctor showing x-ray test result to senior couple
    Portrait of scientist putting on protective mask — Stock Photo
    Portrait of scientist putting on protective mask
    Woman performing a nasal PCR test on a patient — Stock Photo
    Woman performing a nasal PCR test on a patient
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    Portrait of senior woman undergoing an x-ray test in hospital — Stock Photo
    Portrait of senior woman undergoing an x-ray test in hospital
    Researchers hand mixing solution — Stock Photo
    Researchers hand mixing solution
    Elder man checking his arterial pressure with machine — Stock Photo
    Elder man checking his arterial pressure with machine
    Female medical specialist in protective uniform, latex gloves and face mask doing nasal coronavirus test on African American mature woman patient in clinic during virus outbreak — Stock Photo
    Female medical specialist in protective uniform, latex gloves and face mask doing nasal coronavirus test on African American mature woman patient in clinic during virus outbreak
    Female patient receiving a ultrasound scan on the stomach in hospital — Stock Photo
    Female patient receiving a ultrasound scan on the stomach in hospital
    Little girl having finger prick test in medical clinic. — Stock Photo
    Little girl having finger prick test in medical clinic.
    Podiatrist making procedure with patient — Stock Photo
    Podiatrist making procedure with patient
    Blue single-use mask for virus protection on yellow background — Stock Photo
    Blue single-use mask for virus protection on yellow background
    Scientist with papers standing in storage and doing revision in lab. — Stock Photo
    Scientist with papers standing in storage and doing revision in lab.
    Medical worker gloved hands holding test stick in urine sample tube. — Stock Photo
    Medical worker gloved hands holding test stick in urine sample tube.
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    Glass tube with blood sample of patient placed near syringe on table in vet clinic laboratory — Stock Photo
    Glass tube with blood sample of patient placed near syringe on table in vet clinic laboratory
    Collage of many KN95 factor protection masks on a red background overhead view — Stock Photo
    Collage of many KN95 factor protection masks on a red background overhead view
    Close-up of Blood oxygen monitor intensive care ward. — Stock Photo
    Close-up of Blood oxygen monitor intensive care ward.
    Close-up of blood sample in kidney dish. — Stock Photo
    Close-up of blood sample in kidney dish.
    Collage of crowd masks protecting factor KN95 on a red background overhead view — Stock Photo
    Collage of crowd masks protecting factor KN95 on a red background overhead view
    View of ultrasound scanner with pregnant woman begin exterminate in modern hospital — Stock Photo
    View of ultrasound scanner with pregnant woman begin exterminate in modern hospital
    Male patient in hospital gown sitting on bed holding urine sample container. — Stock Photo
    Male patient in hospital gown sitting on bed holding urine sample container.
    From above pregnant female inspecting sonogram picture while lying on bed in ward of modern fertility clinic — Stock Photo
    From above pregnant female inspecting sonogram picture while lying on bed in ward of modern fertility clinic
    Ophthalmologist carrying out visual acuity test with little patient. — Stock Photo
    Ophthalmologist carrying out visual acuity test with little patient.
    Researcher in white costume writing on tablet at laboratory. — Stock Photo
    Researcher in white costume writing on tablet at laboratory.
    Scientist using pipette and flask while providing research in laboratory. — Stock Photo
    Scientist using pipette and flask while providing research in laboratory.
    Unrecognizable female medic in mask and gloves holding tube with blood sample in modern lab in clinic — Stock Photo
    Unrecognizable female medic in mask and gloves holding tube with blood sample in modern lab 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
    Male optometrist examining eye test equipment — Stock Photo
    Male optometrist examining eye test equipment
    Young female EMS key worker doctor in front of healthcare ICU facility — Stock Photo
    Young female EMS key worker doctor in front of healthcare ICU facility
    Blood samples in syringes on white background. — Stock Photo
    Blood samples in syringes on white background.
    African American male doctor in medical glove demonstrating test tube with blood sample on white background — Stock Photo
    African American male doctor in medical glove demonstrating test tube with blood sample on white background
    Side view of scientist working in lab — Stock Photo
    Side view of scientist working in lab
    Middle-aged woman on an open MRI machine waiting for the test to begin — Stock Photo
    Middle-aged woman on an open MRI machine waiting for the test to begin
    Crop scientist adding liquid in flask — Stock Photo
    Crop scientist adding liquid in flask
    Crop unrecognizable optician using phoropter for eyesight testing of senior male patient in clinic — Stock Photo
    Crop unrecognizable optician using phoropter for eyesight testing of senior male patient in clinic
    Close-up of doctor holding prepared influenza nasal vaccine. — Stock Photo
    Close-up of doctor holding prepared influenza nasal vaccine.
    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
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    Young sad female caucasian UK US NHS EMS doctor carer looking through — Stock Photo
    Young sad female caucasian UK US NHS EMS doctor carer looking through
    Doctor using ultrasound diagnostic equipment — Stock Photo
    Doctor using ultrasound diagnostic equipment
    Collage of a lot of blue protection masks over yellow background zenith view — Stock Photo
    Collage of a lot of blue protection masks over yellow background zenith view
    Close-up shot of surgeon with binoculars at work — Stock Photo
    Close-up shot of surgeon with binoculars at work
    Optician testing a girl's eyes with optometry devices — Stock Photo
    Optician testing a girl's eyes with optometry devices
    Close-up shot of group of surgeons in operating room at work — Stock Photo
    Close-up shot of group of surgeons in operating room at work
    Female patient undergoing an x-ray test in the hospital — Stock Photo
    Female patient undergoing an x-ray test in the hospital
    Urine sample for analysis and test strip with chart, studio shot. — Stock Photo
    Urine sample for analysis and test strip with chart, studio shot.