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    Scientist hand holding micro-centrifuge tube containing biological sample. — Stock Photo
    Scientist hand holding micro-centrifuge tube containing biological sample.
    Concrete foundation at construction site — Stock Photo
    Concrete foundation at construction site
    Female mechanic in protective helmet welding pieces — Stock Photo
    Female mechanic in protective helmet welding pieces
    Cropped shot of doctor holding medical dropper — Stock Photo
    Cropped shot of doctor holding medical dropper
    Researcher hand holding vacutainer tube in front of yellow tray. — Stock Photo
    Researcher hand holding vacutainer tube in front of yellow tray.
    Syringe dripping blood droplet into test tubes. — Stock Photo
    Syringe dripping blood droplet into test tubes.
    Uterine cancer in female body, conceptual computer illustration. — Stock Photo
    Uterine cancer in female body, conceptual computer illustration.
    Close-up of blood sample in kidney dish. — Stock Photo
    Close-up of blood sample in kidney dish.
    Genetic research tube containing DNA sample with DNA profile in background. — Stock Photo
    Genetic research tube containing DNA sample with DNA profile in background.
    Smoking cannabis by glass yellow tube closeup. Smoking culture — Stock Photo
    Smoking cannabis by glass yellow tube closeup. Smoking culture
    Close-up Lava flowing from a lava tube into Pacific ocean, Hawaii, America, USA — Stock Photo
    Close-up Lava flowing from a lava tube into Pacific ocean, Hawaii, America, USA
    Dog under anesthesia with tube in mouth lying on operating table during surgery in veterinary hospital — Stock Photo
    Dog under anesthesia with tube in mouth lying on operating table during surgery in veterinary hospital
    Female scientists talking in laboratory — Stock Photo
    Female scientists talking in laboratory
    Powerful foamy sea waves rolling and splashing over water surface against blue sky — Stock Photo
    Powerful foamy sea waves rolling and splashing over water surface against blue sky
    Close-up of rack of sample tubes with blood for analysis. — Stock Photo
    Close-up of rack of sample tubes with blood for analysis.
    Tube sponges on coral reef — Stock Photo
    Tube sponges on coral reef
    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
    Close-up of pipetting blood sample into microcentrifuge tubes. — Stock Photo
    Close-up of pipetting blood sample into microcentrifuge tubes.
    Close-up view of male farmer repairing valve pipe in farm on a sunny day — Stock Photo
    Close-up view of male farmer repairing valve pipe in farm on a sunny day
    Senior woman using asthma inhaler with extension tube. — Stock Photo
    Senior woman using asthma inhaler with extension tube.
    Scientist viewing sample on glass slide under light microscope. — Stock Photo
    Scientist viewing sample on glass slide under light microscope.
    Close-up of test tube in rack at blood bank — Stock Photo
    Close-up of test tube in rack at blood bank
    Man bodyboarding in Caribbean — Stock Photo
    Man bodyboarding in Caribbean
    Illustration of human silhouette with inflamed uterus. — Stock Photo
    Illustration of human silhouette with inflamed uterus.
    Portrait cute, happy girl playing in tube slide — Stock Photo
    Portrait cute, happy girl playing in tube slide
    From above glass vials with pink liquid and empty tube on table by laptop with black screen in lab — Stock Photo
    From above glass vials with pink liquid and empty tube on table by laptop with black screen in lab
    Red berry cocktail decorated with green rosemary in modern glass with tubes on wooden table in bar — Stock Photo
    Red berry cocktail decorated with green rosemary in modern glass with tubes on wooden table in bar
    Woman floating in inner tube in river — Stock Photo
    Woman floating in inner tube in river
    Man smoking traditional hookah in a night club — Stock Photo
    Man smoking traditional hookah in a night club
    Tubes for biological test in rack on blue background. — Stock Photo
    Tubes for biological test in rack on blue background.
    Close-up of motorcycle wheel in industrial mechanical workshop — Stock Photo
    Close-up of motorcycle wheel in industrial mechanical workshop
    Close-up of pipetting blood sample into microcentrifuge tubes. — Stock Photo
    Close-up of pipetting blood sample into microcentrifuge tubes.
    Side view of female scientist doing experiment in lab — Stock Photo
    Side view of female scientist doing experiment in lab
    Weathered industrial buildings and pipes emitting smoke and flames at coking factory — Stock Photo
    Weathered industrial buildings and pipes emitting smoke and flames at coking factory
    Pattern of stacks of steel pipes — Stock Photo
    Pattern of stacks of steel pipes
    Black and white abstract tangled sculpture made of metal tubes with smooth surface on gray background — Stock Photo
    Black and white abstract tangled sculpture made of metal tubes with smooth surface on gray background
    Fallopian tube cellular structure — Stock Photo
    Fallopian tube cellular structure
    Close-up of male scientist experimenting in laboratory — Stock Photo
    Close-up of male scientist experimenting in laboratory
    Couple standing in tube train — Stock Photo
    Couple standing in tube train
    Harlequin swimming crab on tube anemone — Stock Photo
    Harlequin swimming crab on tube anemone
    Concentrated young black male doctor in medical uniform and mask showing test tube with blood sample to attentive boy with earbuds patient during video call — Stock Photo
    Concentrated young black male doctor in medical uniform and mask showing test tube with blood sample to attentive boy with earbuds patient during video call
    Attentive university student doing a chemical experiment in laboratory — Stock Photo
    Attentive university student doing a chemical experiment in laboratory
    Laboratory technician using refrigerated centrifuge machine in blood bank — Stock Photo
    Laboratory technician using refrigerated centrifuge machine in blood bank
    Glowing tube dwelling anemone located in dark black water of clean sea — Stock Photo
    Glowing tube dwelling anemone located in dark black water of clean sea
    Male teacher and students conducting scientific experiment in laboratory classroom — Stock Photo
    Male teacher and students conducting scientific experiment in laboratory classroom
    Mid section of male scientist experimenting in laboratory — Stock Photo
    Mid section of male scientist experimenting in laboratory
    Close-up of doctor holding prepared influenza nasal vaccine. — Stock Photo
    Close-up of doctor holding prepared influenza nasal vaccine.
    Decoration on table against stool and carpet on floor under tube on gray wall in passage — Stock Photo
    Decoration on table against stool and carpet on floor under tube on gray wall in passage
    Close-up of scientist experimenting a test tube — Stock Photo
    Close-up of scientist experimenting a test tube
    Different chemicals in lab — Stock Photo
    Different chemicals in lab
    Scientist preparing samples in microcentrifuge tubes for chemical analysis. — Stock Photo
    Scientist preparing samples in microcentrifuge tubes for chemical analysis.
    Woman smoking by railings at entrance to tube station — Stock Photo
    Woman smoking by railings at entrance to tube station
    Sperm in a fallopian tube. Coloured composition scanning electron micrograph (SEM) of human sperm travelling through a fallopian tube (oviduct) of a female — Stock Photo
    Sperm in a fallopian tube. Coloured composition scanning electron micrograph (SEM) of human sperm travelling through a fallopian tube (oviduct) of a female
    Little toddler boy on hospital bed — Stock Photo
    Little toddler boy on hospital bed
    Illustration of human blood cells in blood stream. — Stock Photo
    Illustration of human blood cells in blood stream.
    Rack of test tubes with blood samples on blue background. — Stock Photo
    Rack of test tubes with blood samples on blue background.
    Powerful foamy sea waves rolling and splashing over water surface against blue sky — Stock Photo
    Powerful foamy sea waves rolling and splashing over water surface against blue sky
    Cab and exhaust tube of shabby red tractor parked in garage on farm yard near hay stacks — Stock Photo
    Cab and exhaust tube of shabby red tractor parked in garage on farm yard near hay stacks
    Colony of bright cup corals on reef — Stock Photo
    Colony of bright cup corals on reef
    Close-up of blood sample in tube and syringe. — Stock Photo
    Close-up of blood sample in tube and syringe.