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    Pool of blood in watch glass with syringe. — Stock Photo
    Pool of blood in watch glass with syringe.
    Stacked agar plates on plain background. — Stock Photo
    Stacked agar plates on plain background.
    Hand of researcher holding vacutainer tube above pool of blood and syringe. — Stock Photo
    Hand of researcher holding vacutainer tube above pool of blood and syringe.
    Female patient going through x-ray test in hospital — Stock Photo
    Female patient going through x-ray test in hospital
    Female patient receiving a ultrasound scan on the neck in hospital — Stock Photo
    Female patient receiving a ultrasound scan on the neck in hospital
    Close-up of pipette pipetting into test tubes in pathogenic laboratory. — Stock Photo
    Close-up of pipette pipetting into test tubes in pathogenic laboratory.
    Close-up of stethoscope alongside blood sample in test tube, syringe and medical vial in a clinic. — Stock Photo
    Close-up of stethoscope alongside blood sample in test tube, syringe and medical vial in a clinic.
    Crop anonymous doctor in medical glove demonstrating test tube with blood sample on white background — Stock Photo
    Crop anonymous doctor in medical glove demonstrating test tube with blood sample on white background
    Male doctor checking up chest of woman on monitor of ultrasound machine in hospital — Stock Photo
    Male doctor checking up chest of woman on monitor of ultrasound machine in hospital
    Top view of pregnancy test placed on pink background — Stock Photo
    Top view of pregnancy test placed on pink background
    Crop male placing vial with chemical sample into electronic medical device for conducting research in laboratory — Stock Photo
    Crop male placing vial with chemical sample into electronic medical device for conducting research in laboratory
    Female doctor in laboratory. medical concept — Stock Photo
    Female doctor in laboratory. medical concept
    Mobile health. Measuring blood pressure and entering data in the smart phone. — Stock Photo
    Mobile health. Measuring blood pressure and entering data in the smart phone.
    Elder man checking his arterial pressure with machine — Stock Photo
    Elder man checking his arterial pressure with machine
    Cell-based testing kit in bioengineering laboratory. — Stock Photo
    Cell-based testing kit in bioengineering laboratory.
    Scientists writing note on glass wall at lab — Stock Photo
    Scientists writing note on glass wall at lab
    Scientist holding test tubes with liquids in hand — Stock Photo
    Scientist holding test tubes with liquids in hand
    Doctor taking blood sample — Stock Photo
    Doctor taking blood sample
    Preschooler boy undergoing logic cards test for developmental psychology test in female psychologist office. — Stock Photo
    Preschooler boy undergoing logic cards test for developmental psychology test in female psychologist office.
    Barcodes on test tubes with blood samples. — Stock Photo
    Barcodes on test tubes with blood samples.
    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
    Elementary age boy in ophthalmology glasses while eye examination in clinic. — Stock Photo
    Elementary age boy in ophthalmology glasses while eye examination in clinic.
    Laboratory technician analyzing chemical solution in blood bank — Stock Photo
    Laboratory technician analyzing chemical solution in blood bank
    Female dentist taking x-ray of patient teeth at clinic — Stock Photo
    Female dentist taking x-ray of patient teeth at clinic
    Male patient going through x-ray test in hospital — Stock Photo
    Male patient going through x-ray test in hospital
    Optician testing a girl's eyes with optometry devices — Stock Photo
    Optician testing a girl's eyes with optometry devices
    Team of dentists before an operation — Stock Photo
    Team of dentists before an operation
    Scientist studying small device in laboratory — Stock Photo
    Scientist studying small device in laboratory
    Microscope and piles on Petri dishes in laboratory on blue background. — Stock Photo
    Microscope and piles on Petri dishes in laboratory on blue background.
    Female doctor in sterile mask and blue glove using ultrasound scanner while examining cheerful pregnant woman pointing at the screen in hospital — Stock Photo
    Female doctor in sterile mask and blue glove using ultrasound scanner while examining cheerful pregnant woman pointing at the screen in hospital
    Close-up of lab-on-a-chip integrated circuit device on black background. — Stock Photo
    Close-up of lab-on-a-chip integrated circuit device on black background.
    Group of laboratory test tubes. — Stock Photo
    Group of laboratory test tubes.
    Doctor using ultrasound diagnostic equipment — Stock Photo
    Doctor using ultrasound diagnostic equipment
    Team of dentists removing a tooth from a patient — Stock Photo
    Team of dentists removing a tooth from a patient
    Scientific laboratory researcher using test tube while experiment. — Stock Photo
    Scientific laboratory researcher using test tube while experiment.
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    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
    Hands of physical therapist performing skinfold test to measuring teenage boy body fat. — Stock Photo
    Hands of physical therapist performing skinfold test to measuring teenage boy body fat.
    Vet writing on test tubes, Franc — Stock Photo
    Vet writing on test tubes, Franc
    Physician measuring thigh circumference with tape measure on male athlete. — Stock Photo
    Physician measuring thigh circumference with tape measure on male athlete.
    Woman sitting on sofa and looking down at pregnancy test. — Stock Photo
    Woman sitting on sofa and looking down at pregnancy test.
    Crop anonymous vet doctor with syringe taking blood sample from cat during examination in veterinary clinic — Stock Photo
    Crop anonymous vet doctor with syringe taking blood sample from cat during examination in veterinary clinic
    Bacterial colonies on agar plates — Stock Photo
    Bacterial colonies on agar plates
    Female hands testing blood sample — Stock Photo
    Female hands testing blood sample
    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.
    Pipette and petri dishes for blood testing. — Stock Photo
    Pipette and petri dishes for blood testing.
    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
    Blood samples in test tubes — Stock Photo
    Blood samples in test tubes
    Hospital radiologist sitting at desk in front of CT scans. — Stock Photo
    Hospital radiologist sitting at desk in front of CT scans.
    Female doctor putting headphones on boy having hearing test. — Stock Photo
    Female doctor putting headphones on boy having hearing test.
    Lab chemist placing a sample slide on a microscope stage — Stock Photo
    Lab chemist placing a sample slide on a microscope stage
    Close-up of laboratory technician writing on test tube. — Stock Photo
    Close-up of laboratory technician writing on test tube.
    Scientist viewing medical sample on glass slide under microscope in laboratory. — Stock Photo
    Scientist viewing medical sample on glass slide under microscope 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
    Light microscope with petri dishes on blue background. — Stock Photo
    Light microscope with petri dishes on blue background.
    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
    Optician testing a boy's eyes with optometry devices — Stock Photo
    Optician testing a boy's eyes with optometry devices
    Crop scientist adding liquid in flask — Stock Photo
    Crop scientist adding liquid in flask
    Close-up of doctor holding cardio monitor — Stock Photo
    Close-up of doctor holding cardio monitor
    Scientist walking along shelves with reagents and providing revision in lab — Stock Photo
    Scientist walking along shelves with reagents and providing revision in lab