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    Female agronomist taking sample with soil probe sampler. — Stock Photo
    Female agronomist taking sample with soil probe sampler.
    Learning, education and school concept. Young woman and man studying for a test or an exam. Tutor books with friends. Young students campus helps friend catching up and learning. — Stock Photo
    Learning, education and school concept. Young woman and man studying for a test or an exam. Tutor books with friends. Young students campus helps friend catching up and learning.
    Confident scientist man with arms crossed standing outside laboratory. — Stock Photo
    Confident scientist man with arms crossed standing outside laboratory.
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    PCR micro tube strip with red liquid. — Stock Photo
    PCR micro tube strip with red liquid.
    Female doctor in laboratory. medical concept — Stock Photo
    Female doctor in laboratory. medical concept
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    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.
    Red chili pepper in test tube, studio shot. — Stock Photo
    Red chili pepper in test tube, studio shot.
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    Pill in Petri dish on gray background. — Stock Photo
    Pill in Petri dish on gray background.
    Microbiological research, illustration. Multi-channel pipette and multi-well plates in microbiology lab — Stock Photo
    Microbiological research, illustration. Multi-channel pipette and multi-well plates in microbiology lab
    Close-up of scientist hand holding Petri dish in pathology laboratory. — Stock Photo
    Close-up of scientist hand holding Petri dish in pathology laboratory.
    Top view of crop anonymous male chemist putting sample tubes in centrifugal machine in cannabis lab — Stock Photo
    Top view of crop anonymous male chemist putting sample tubes in centrifugal machine in cannabis lab
    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
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    Refrigerated centrifuge machine with test tube in blood bank — Stock Photo
    Refrigerated centrifuge machine with test tube in blood bank
    Teenage boy experimenting chemical solution in laboratory — Stock Photo
    Teenage boy experimenting chemical solution in laboratory
    Hand holding multi well plate with samples with DNA results in background. — Stock Photo
    Hand holding multi well plate with samples with DNA results in background.
    Female patient at eye examination in ophthalmology clinic. — Stock Photo
    Female patient at eye examination in ophthalmology clinic.
    Close-up shot of doctor making laser procedure for female patient — Stock Photo
    Close-up shot of doctor making laser procedure for female patient
    Close-up of blood sample in glass phial. — Stock Photo
    Close-up of blood sample in glass phial.
    Close-up of optometrist examining patient eyes with eye test equipment in clinic — Stock Photo
    Close-up of optometrist examining patient eyes with eye test equipment in clinic
    Coronavirus negative and positive blood test near vaccine flask and syringe on pink background — Stock Photo
    Coronavirus negative and positive blood test near vaccine flask and syringe on pink background
    Close-up of pipette pipetting into test tubes in pathogenic laboratory. — Stock Photo
    Close-up of pipette pipetting into test tubes in pathogenic laboratory.
    Scientist using laptop at desk in science laboratory — Stock Photo
    Scientist using laptop at desk in science laboratory
    Middle-aged woman and her doctor in an open MRI machine waiting for the test to start — Stock Photo
    Middle-aged woman and her doctor in an open MRI machine waiting for the test to start
    Scientists discussing over clipboard in lab — Stock Photo
    Scientists discussing over clipboard in lab
    Water department technician reinstalling caps on fire hydrant — Stock Photo
    Water department technician reinstalling caps on fire hydrant
    Closeup view of empty laboratory beakers in drawer — Stock Photo
    Closeup view of empty laboratory beakers in drawer
    Side view of doctor wearing protective uniform and latex gloves checking infusion system while working in modern clinic — Stock Photo
    Side view of doctor wearing protective uniform and latex gloves checking infusion system while working in modern clinic
    Stacked petri dishes with with biohazard warning. — Stock Photo
    Stacked petri dishes with with biohazard warning.
    Close-up of multichannel pipette with green liquid pipetting into multiwell plate in laboratory. — Stock Photo
    Close-up of multichannel pipette with green liquid pipetting into multiwell plate in laboratory.
    Top view of mosaic or pattern of positive blood tests over blue background. — Stock Photo
    Top view of mosaic or pattern of positive blood tests over blue background.
    Female agronomist measuring soil temperature with thermometer in field. — Stock Photo
    Female agronomist measuring soil temperature with thermometer in field.
    Computer programmers testing virtual reality simulator glasses in office — Stock Photo
    Computer programmers testing virtual reality simulator glasses in office
    Urine samples in containers for analysis, studio shot. — Stock Photo
    Urine samples in containers for analysis, studio shot.
    Portrait of two smiling university students standing in corridor — Stock Photo
    Portrait of two smiling university students standing in corridor
    Thoughtful high school boy taking exam at desk in classroom — Stock Photo
    Thoughtful high school boy taking exam at desk in classroom
    Boy holding guinea pig in vet examination — Stock Photo
    Boy holding guinea pig in vet examination
    Podiatrist examining and treating patient — Stock Photo
    Podiatrist examining and treating patient
    Pollution control inspector taking sample of polluted water from spring in field. — Stock Photo
    Pollution control inspector taking sample of polluted water from spring in field.
    Female doctor performing allergy skin prick test on little boy arm. — Stock Photo
    Female doctor performing allergy skin prick test on little boy arm.
    School in Village of Maasai tribe — Stock Photo
    School in Village of Maasai tribe
    Test tubes filled with water and multi-colored acrylic paint — Stock Photo
    Test tubes filled with water and multi-colored acrylic paint
    Rack of test tubes with blood samples on blue background. — Stock Photo
    Rack of test tubes with blood samples on blue background.
    Crime scene markers and forensics expert collecting blood sample in background. — Stock Photo
    Crime scene markers and forensics expert collecting blood sample in background.
    Senior woman doing a DNA test at home. — Stock Photo
    Senior woman doing a DNA test at home.
    Scientist hand holding micro-centrifuge tube containing biological sample. — Stock Photo
    Scientist hand holding micro-centrifuge tube containing biological sample.
    Laboratory assistant holding medical samples in rack, mid section. — Stock Photo
    Laboratory assistant holding medical samples in rack, mid section.
    Researcher hand holding vacutainer tube in front of yellow tray. — Stock Photo
    Researcher hand holding vacutainer tube in front of yellow tray.
    Female doctor performing skin prick allergy testing on boy for possible allergen. — Stock Photo
    Female doctor performing skin prick allergy testing on boy for possible allergen.
    Radiographer taking computed tomography scan of female patient. — Stock Photo
    Radiographer taking computed tomography scan of female patient.
    Glass slide containing human sample under light microscope for medical testing. — Stock Photo
    Glass slide containing human sample under light microscope for medical testing.
    Side view of female mechanic wearing respirator using spray pistol — Stock Photo
    Side view of female mechanic wearing respirator using spray pistol
    Close-up of equipment holder in a laboratory — Stock Photo
    Close-up of equipment holder in a laboratory
    Female patient receiving a ultrasound scan on the stomach in hospital — Stock Photo
    Female patient receiving a ultrasound scan on the stomach in hospital
    Doctors examining boy teeth in dental clinic with mouth mirror. — Stock Photo
    Doctors examining boy teeth in dental clinic with mouth mirror.
    Happy black woman in optometry cabinet during study of the eyesight — Stock Photo
    Happy black woman in optometry cabinet during study of the eyesight
    Elementary age boy in ophthalmology glasses reading visual chart while visual acuity test. — Stock Photo
    Elementary age boy in ophthalmology glasses reading visual chart while visual acuity test.