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    Senior woman using spirometer, measuring lung capacity and peak expiratory force. — Stock Photo
    Senior woman using spirometer, measuring lung capacity and peak expiratory force.
    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.
    Scientist checking a solution in conical flask at lab — Stock Photo
    Scientist checking a solution in conical flask at lab
    Researcher preparing samples of donated blood for analysis. — Stock Photo
    Researcher preparing samples of donated blood for analysis.
    Young female scientist working in laboratory — Stock Photo
    Young female scientist working in laboratory
    From above closed glass ampoules with scientific samples arranged in black foam rubber case in lab — Stock Photo
    From above closed glass ampoules with scientific samples arranged in black foam rubber case in lab
    Optician testing a girl's eyes with optometry devices — Stock Photo
    Optician testing a girl's eyes with optometry devices
    Female scientist in clean suit with test tubes studying coronavirus — Stock Photo
    Female scientist in clean suit with test tubes studying coronavirus
    Medical worker gloved hands holding test stick in urine sample tube. — Stock Photo
    Medical worker gloved hands holding test stick in urine sample tube.
    Blood samples in centrifuge tubes on white background. — Stock Photo
    Blood samples in centrifuge tubes on white background.
    Dentist looking at dental x-ray plate in clinic — Stock Photo
    Dentist looking at dental x-ray plate in clinic
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    Medical check-up including blood and urine test samples and results. — Stock Photo
    Medical check-up including blood and urine test samples and results.
    Side view of scientist working in lab — Stock Photo
    Side view of scientist working in lab
    Female researcher analyzing samples with microscope in the laboratory — Stock Photo
    Female researcher analyzing samples with microscope in the laboratory
    Close-up of hands of mature woman testing blood glucose with finger prick test. — Stock Photo
    Close-up of hands of mature woman testing blood glucose with finger prick test.
    Laboratory assistant holding medical samples in rack, mid section. — Stock Photo
    Laboratory assistant holding medical samples in rack, mid section.
    Scientist using pipette and flask while providing research in laboratory. — Stock Photo
    Scientist using pipette and flask while providing research in laboratory.
    Boy coloring shapes with colorful pens for developmental psychology test in psychologist office. — Stock Photo
    Boy coloring shapes with colorful pens for developmental psychology test in psychologist office.
    Human Platelets, computer illustration — Stock Photo
    Human Platelets, computer illustration
    Close-up of hand taking lens for eye test from rack. — Stock Photo
    Close-up of hand taking lens for eye test from rack.
    White mask with reusable KN95 protection index for virus protection on yellow background — Stock Photo
    White mask with reusable KN95 protection index for virus protection on yellow background
    Crop unrecognizable woman using modern pulse oximeter on finger of kid for measuring oxygen level in blood — Stock Photo
    Crop unrecognizable woman using modern pulse oximeter on finger of kid for measuring oxygen level in blood
    Test tubes, computer illustration — Stock Photo
    Test tubes, computer illustration
    Laboratory technicians interacting with each other in blood bank — Stock Photo
    Laboratory technicians interacting with each other in blood bank
    Eye examination of woman with slit lamp. — Stock Photo
    Eye examination of woman with slit lamp.
    Rack of test tubes with blood samples in laboratory. — Stock Photo
    Rack of test tubes with blood samples in laboratory.
    Test tubes rack with urine samples for analysis, studio shot. — Stock Photo
    Test tubes rack with urine samples for analysis, studio shot.
    Female doctor wearing medical gloves taking swab test from female patient at home. medical and healthcare services home visiting during coronavirus covid 19 pandemic. — Stock Photo
    Female doctor wearing medical gloves taking swab test from female patient at home. medical and healthcare services home visiting during coronavirus covid 19 pandemic.
    Laboratory assistant holding medical samples in rack, mid section. — Stock Photo
    Laboratory assistant holding medical samples in rack, mid section.
    Optometrist adjusting the optometry equipment during study of the eyesight of a black woman — Stock Photo
    Optometrist adjusting the optometry equipment during study of the eyesight of a black woman
    Scientists checking a solution in bottle in lab — Stock Photo
    Scientists checking a solution in bottle in lab
    Blood in human urine in sample pots, studio shot. — Stock Photo
    Blood in human urine in sample pots, studio shot.
    Scientist pipetting sample in microcentrifuge tube for chemical analysis. — Stock Photo
    Scientist pipetting sample in microcentrifuge tube for chemical analysis.
    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
    Female patient receiving a ultrasound scan on the stomach in hospital — Stock Photo
    Female patient receiving a ultrasound scan on the stomach in hospital
    Laboratory technician analyzing blood samples in blood bank — Stock Photo
    Laboratory technician analyzing blood samples in blood bank
    Female scientist working with test tube. — Stock Photo
    Female scientist working with test tube.
    Scientist pouring chemical solution on test tube from bottle in lab — Stock Photo
    Scientist pouring chemical solution on test tube from bottle in lab
    Stacked agar plates with microbiological cultures on plain background. — Stock Photo
    Stacked agar plates with microbiological cultures on plain background.
    Scientist analyzing a sample at lab — Stock Photo
    Scientist analyzing a sample at lab
    Elder man checking his arterial pressure with machine — Stock Photo
    Elder man checking his arterial pressure with machine
    Female scientist holding blood samples in test tubes. — Stock Photo
    Female scientist holding blood samples in test tubes.
    Person in latex glove holding test tube with ear of wheat — Stock Photo
    Person in latex glove holding test tube with ear of wheat
    Laboratory technician analyzing chemical solution in blood bank — Stock Photo
    Laboratory technician analyzing chemical solution in blood bank
    Close-up of a doctor ready to perform a PCR test — Stock Photo
    Close-up of a doctor ready to perform a PCR test
    Single test tube with blood sample. — Stock Photo
    Single test tube with blood sample.
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    Male doctor examining patient in hospital — Stock Photo
    Male doctor examining patient in hospital
    Young female doctor standing in front of healthcare facility, wearing protective face mask and PPE equipment, holding medical patient clipboard, COVID-19 pandemic crisis — Stock Photo
    Young female doctor standing in front of healthcare facility, wearing protective face mask and PPE equipment, holding medical patient clipboard, COVID-19 pandemic crisis
    Cropped unrecognizable woman hands holding a pregnancy test besides a window — Stock Photo
    Cropped unrecognizable woman hands holding a pregnancy test besides a window
    Back view of anonymous group of professional doctors in protective suits transporting patient with virus infection to hospital — Stock Photo
    Back view of anonymous group of professional doctors in protective suits transporting patient with virus infection to hospital
    Close-up of test tube in rack at blood bank — Stock Photo
    Close-up of test tube in rack at blood bank
    Close-up shot of doctor examining belly of pregnant woman with ultrasound — Stock Photo
    Close-up shot of doctor examining belly of pregnant woman with ultrasound
    Preschooler boy undergoing logic test with numbers for developmental psychology test in female psychologist office. — Stock Photo
    Preschooler boy undergoing logic test with numbers for developmental psychology test in female psychologist office.
    Bearded elderly male in eye test glasses sitting in modern clinic before vision examination and looking at camera — Stock Photo
    Bearded elderly male in eye test glasses sitting in modern clinic before vision examination and looking at camera
    Female scientist working with test tube. — Stock Photo
    Female scientist working with test tube.
    Machine for automated analysis of donated blood. — Stock Photo
    Machine for automated analysis of donated blood.
    Single test tube with blood sample in rack. — Stock Photo
    Single test tube with blood sample in rack.
    Eye examination. Woman wearing trial frames during an eye examination. — Stock Photo
    Eye examination. Woman wearing trial frames during an eye examination.