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    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
    Measuring oxygen saturation in blood with pulse oximeter. — Stock Photo
    Measuring oxygen saturation in blood with pulse oximeter.
    Portrait of scientist putting on protective mask — Stock Photo
    Portrait of scientist putting on protective mask
    Side view of male scientist experimenting in laboratory — Stock Photo
    Side view of male scientist experimenting in laboratory
    Scientist in white uniform putting on protective mask — Stock Photo
    Scientist in white uniform putting on protective mask
    Female chemist setting up vacuum pump in laboratory, close-up — Stock Photo
    Female chemist setting up vacuum pump in laboratory, close-up
    Scientist holding samples in multi well plate during experiment in laboratory. — Stock Photo
    Scientist holding samples in multi well plate during experiment in laboratory.
    Athlete participating in tes — Stock Photo
    Athlete participating in tes
    Close-up of antibiotic testing in petri dish. — Stock Photo
    Close-up of antibiotic testing in petri dish.
    Cut lavender flowers — Stock Photo
    Cut lavender flowers
    From above of crop unrecognizable scientist with sample tubes in rack against centrifugal machine in cannabis laboratory — Stock Photo
    From above of crop unrecognizable scientist with sample tubes in rack against centrifugal machine in cannabis laboratory
    Senior woman preparing DNA test kit. — Stock Photo
    Senior woman preparing DNA test kit.
    Boy wearing headphones as playing with building blocks while hearing test with female taking notes. — Stock Photo
    Boy wearing headphones as playing with building blocks while hearing test with female taking notes.
    Doctor using x-ray machine to examining patient in hospital — Stock Photo
    Doctor using x-ray machine to examining patient in hospital
    Doctor preparing HIV test sample for testing in laboratory. — Stock Photo
    Doctor preparing HIV test sample for testing in laboratory.
    Cropped view of scientist hands pipetting sample for biological research. — Stock Photo
    Cropped view of scientist hands pipetting sample for biological research.
    Female chemist setting up equipment in laboratory. — Stock Photo
    Female chemist setting up equipment in laboratory.
    Coffee beans in test tube on white background, studio shot. — Stock Photo
    Coffee beans in test tube on white background, studio shot.
    Green spinach in test tube, studio shot. — Stock Photo
    Green spinach in test tube, studio shot.
    Scientific laboratory researcher using test tube and microscope. — Stock Photo
    Scientific laboratory researcher using test tube and microscope.
    Syringe dripping blood droplet into test tubes. — Stock Photo
    Syringe dripping blood droplet into test tubes.
    Laboratory technician analyzing chemical solution in blood bank — Stock Photo
    Laboratory technician analyzing chemical solution in blood bank
    College students taking test at desks in classroom — Stock Photo
    College students taking test at desks in classroom
    Hand holding a multiwell tray containing blood samples. — Stock Photo
    Hand holding a multiwell tray containing blood samples.
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    African american senior male doctor performing throat swab test on african american man at home. medical testing for prevention of coronavirus outbreak concept — Stock Photo
    African american senior male doctor performing throat swab test on african american man at home. medical testing for prevention of coronavirus outbreak concept
    Doctor with oximeter examining little patient — Stock Photo
    Doctor with oximeter examining little patient
    Researcher in white costume writing on tablet at laboratory. — Stock Photo
    Researcher in white costume writing on tablet at laboratory.
    Close-up of human urine, blood and various chemistry samples in test tubes while screening in medical lab. — Stock Photo
    Close-up of human urine, blood and various chemistry samples in test tubes while screening in medical lab.
    Scientist preparing samples in microcentrifuge tubes for chemical analysis. — Stock Photo
    Scientist preparing samples in microcentrifuge tubes for chemical analysis.
    Close-up of blood sample in tube and syringe. — Stock Photo
    Close-up of blood sample in tube and syringe.
    Laboratory assistant holding medical samples in rack, mid section. — Stock Photo
    Laboratory assistant holding medical samples in rack, mid section.
    Pharmaceutical scientist hands holding laboratory glass filled with colorful pills. — Stock Photo
    Pharmaceutical scientist hands holding laboratory glass filled with colorful pills.
    Scientist removing medical samples from machine in lab — Stock Photo
    Scientist removing medical samples from machine in lab
    Lab chemist preparing automated water test — Stock Photo
    Lab chemist preparing automated water test
    Optician testing a girl's eyes with optometry devices — Stock Photo
    Optician testing a girl's eyes with optometry devices
    Ophthalmologist examining boy eyes with slit lamp in clinic. — Stock Photo
    Ophthalmologist examining boy eyes with slit lamp in clinic.
    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.
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    Laboratory technician analyzing blood bag in blood bank — Stock Photo
    Laboratory technician analyzing blood bag in blood bank
    Scientist examining specimen under microscope during clinical trial in laboratory. — Stock Photo
    Scientist examining specimen under microscope during clinical trial in laboratory.
    Senior mixed race man with female doctor home visiting wearing face masks taking swab test. healthcare and hygiene during coronavirus covid 19 pandemic. — Stock Photo
    Senior mixed race man with female doctor home visiting wearing face masks taking swab test. healthcare and hygiene during coronavirus covid 19 pandemic.
    Blood sampling vacutainer tubes in rack, close-up. — Stock Photo
    Blood sampling vacutainer tubes in rack, close-up.
    Senior woman using tensiometer to measure blood pressure while sitting at table at home — Stock Photo
    Senior woman using tensiometer to measure blood pressure while sitting at table at home
    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.
    Labeled medical samples in rack, close-up. — Stock Photo
    Labeled medical samples in rack, close-up.
    High angle of crop anonymous medic taking blood test of patient with medical device in clinic — Stock Photo
    High angle of crop anonymous medic taking blood test of patient with medical device in clinic
    Boy wearing headphones as having hearing test, female doctor putting hand on kid shoulder. — Stock Photo
    Boy wearing headphones as having hearing test, female doctor putting hand on kid shoulder.
    Senior woman using blood pressure meter. — Stock Photo
    Senior woman using blood pressure meter.
    Female audiologist putting headphones on boy having hearing test. — Stock Photo
    Female audiologist putting headphones on boy having hearing test.
    DNA testing using saliva sample. — Stock Photo
    DNA testing using saliva sample.
    Side view of a specialist using a digital multimeter to check the correct voltage of an electric scooter in a specialist workshop. — Stock Photo
    Side view of a specialist using a digital multimeter to check the correct voltage of an electric scooter in a specialist workshop.
    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 immunologist performing skin prick allergy testing on boy. — Stock Photo
    Hands of immunologist performing skin prick allergy testing on boy.
    Tools for gathering evidence at scene of crime. — Stock Photo
    Tools for gathering evidence at scene of crime.
    A vial of the Coronavirus vaccine and syringe on a table in a clinic — Stock Photo
    A vial of the Coronavirus vaccine and syringe on a table in a clinic
    Assistant working in lab with pink liquid — Stock Photo
    Assistant working in lab with pink liquid
    Woman doing finger prick test. — Stock Photo
    Woman doing finger prick test.
    Raw, light, medium and dark roast coffee beans in test tubes. — Stock Photo
    Raw, light, medium and dark roast coffee beans in test tubes.
    Focused male coffee roaster testing coffee — Stock Photo
    Focused male coffee roaster testing coffee