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    Rack of test tubes with blood samples on blue background. — Stock Photo
    Rack of test tubes with blood samples on blue background.
    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
    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
    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
    Woman doing experiment in chemical laboratory. — Stock Photo
    Woman doing experiment in chemical laboratory.
    Close-up of human blood and various medical samples in test tubes while screening in medical lab. — Stock Photo
    Close-up of human blood and various medical samples in test tubes while screening in medical lab.
    Adipose tissue composed of adipocytes — Stock Photo
    Adipose tissue composed of adipocytes
    Close-up of human blood and various medical samples in test tubes while screening in medical lab. — Stock Photo
    Close-up of human blood and various medical samples in test tubes while screening in medical lab.
    Podiatrist making procedure with patient — Stock Photo
    Podiatrist making procedure with patient
    College students taking test at desks in classroom — Stock Photo
    College students taking test at desks in classroom
    Portrait of boy waiting for teeth examination in clinic. — Stock Photo
    Portrait of boy waiting for teeth examination in clinic.
    Close-up of pipetting colorful liquids into test tubes. — Stock Photo
    Close-up of pipetting colorful liquids into test tubes.
    Female scientists in face masks working in laboratory — Stock Photo
    Female scientists in face masks working in laboratory
    Lab technician adding liquid to graduated cylinder — Stock Photo
    Lab technician adding liquid to graduated cylinder
    Platelets in blood vessel — Stock Photo
    Platelets in blood vessel
    Patient discussing with optometrist over digital screen in clinic — Stock Photo
    Patient discussing with optometrist over digital screen in clinic
    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
    Female medic in mask collecting blood from arm of male patient sitting in medical chair in modern clinic — Stock Photo
    Female medic in mask collecting blood from arm of male patient sitting in medical chair in modern clinic
    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
    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.
    Female scientist holding and analyzing human skull in ancient DNA laboratory. — Stock Photo
    Female scientist holding and analyzing human skull in ancient DNA laboratory.
    Caucasian female doctor wearing face mask taking swab test from female patient at home. medical and healthcare services home visiting during coronavirus covid 19 pandemic. . medical and healthcare se — Stock Photo
    Caucasian female doctor wearing face mask taking swab test from female patient at home. medical and healthcare services home visiting during coronavirus covid 19 pandemic. . medical and healthcare se
    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.
    Forensic scientist taking hair specimen for DNA testing from clothing from crime scene. — Stock Photo
    Forensic scientist taking hair specimen for DNA testing from clothing from crime scene.
    Doctor reading the results of blood test while holding blood sample. — Stock Photo
    Doctor reading the results of blood test while holding blood sample.
    From above pregnant female inspecting sonogram picture while sitting in a chair in ward of modern fertility clinic — Stock Photo
    From above pregnant female inspecting sonogram picture while sitting in a chair in ward of modern fertility clinic
    Blood samples ready for analysis — Stock Photo
    Blood samples ready for analysis
    Close-up of pipette pipetting into test tubes in pathogenic laboratory. — Stock Photo
    Close-up of pipette pipetting into test tubes in pathogenic laboratory.
    Female scientist taking notes in soil testing laboratory. — Stock Photo
    Female scientist taking notes in soil testing laboratory.
    Colorful fruits and vegetables in test tubes, studio shot. — Stock Photo
    Colorful fruits and vegetables in test tubes, studio shot.
    Crop scientist taking off work gloves — Stock Photo
    Crop scientist taking off work gloves
    Lab technician picking up samples — Stock Photo
    Lab technician picking up samples
    Portrait of senior woman undergoing an x-ray test in hospital — Stock Photo
    Portrait of senior woman undergoing an x-ray test in hospital
    Various food produce in test tubes, studio shot. — Stock Photo
    Various food produce in test tubes, studio shot.
    Mid section of scientists doing experiment in lab — Stock Photo
    Mid section of scientists doing experiment in lab
    Still life on the theme of protective masks against coronavirus. Alternative fabric mask — Stock Photo
    Still life on the theme of protective masks against coronavirus. Alternative fabric mask
    Modern refrigerated centrifuge machine in blood bank — Stock Photo
    Modern refrigerated centrifuge machine in blood bank
    Attentive university student doing a chemical experiment in laboratory — Stock Photo
    Attentive university student doing a chemical experiment in laboratory
    Tangled computer server cords in server room — Stock Photo
    Tangled computer server cords in server room
    Nurse applying plaster to girl hand. — Stock Photo
    Nurse applying plaster to girl hand.
    Crop concentrated female scientist in white robe and gloves conducting chemical experiment with substance and syringe while working in modern laboratory — Stock Photo
    Crop concentrated female scientist in white robe and gloves conducting chemical experiment with substance and syringe while working in modern laboratory
    Hands of immunologist performing skin prick allergy testing on boy. — Stock Photo
    Hands of immunologist performing skin prick allergy testing on boy.
    Workers in protective suits using machinery in fiber optics research and testing laboratory — Stock Photo
    Workers in protective suits using machinery in fiber optics research and testing laboratory
    Ophthalmologist examining a womans eyes with a keratometer — Stock Photo
    Ophthalmologist examining a womans eyes with a keratometer
    Bioarcheology scientists analyzing human skull in DNA archaeology lab. — Stock Photo
    Bioarcheology scientists analyzing human skull in DNA archaeology lab.
    From above anonymous medical practitioner using injector to fill well plate with red liquid during work in modern laboratory of clinic — Stock Photo
    From above anonymous medical practitioner using injector to fill well plate with red liquid during work in modern laboratory of clinic
    Single test tube with blood sample in rack. — Stock Photo
    Single test tube with blood sample in rack.
    Senior woman undergoing an x-ray test in hospital — Stock Photo
    Senior woman undergoing an x-ray test in hospital
    Optician adjusting trial frame for eye examination preteen girl. — Stock Photo
    Optician adjusting trial frame for eye examination preteen girl.
    DNA testing using saliva sample. — Stock Photo
    DNA testing using saliva sample.
    Curious kids watching foam in beakers — Stock Photo
    Curious kids watching foam in beakers
    From above crop anonymous chemist in latex gloves filling glass pipette with chemical liquid from boiling flask while conducting test in laboratory — Stock Photo
    From above crop anonymous chemist in latex gloves filling glass pipette with chemical liquid from boiling flask while conducting test in laboratory
    Male scientist in clean suit studying vial in laboratory — Stock Photo
    Male scientist in clean suit studying vial in laboratory
    Ophthalmologist examining a womans eyes with a slit lamp — Stock Photo
    Ophthalmologist examining a womans eyes with a slit lamp
    Test tubes, computer illustration — Stock Photo
    Test tubes, computer illustration
    Radiographer comforting patient before computed tomography (CT) scan. — Stock Photo
    Radiographer comforting patient before computed tomography (CT) scan.
    Microbiologist working with petri dish and test tubes in laboratory. — Stock Photo
    Microbiologist working with petri dish and test tubes in laboratory.
    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.
    Woman dipping her hand in a river, Bulgaria — Stock Photo
    Woman dipping her hand in a river, Bulgaria
    Tube with blood sample on metal tray in laboratory. — Stock Photo
    Tube with blood sample on metal tray in laboratory.