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  • Test tubes for blood. Medical equipment. Multi-colored cover, a photo close up, shallow depth of field.
  • 543456820
  • iStock
  • Medical scientist conducting research of blood sample for hematologic diseases
  • 879832122
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  • Blood test tubes. Blood samples in a rack. 3d illustration
  • 523184134
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  • Sample red grunge round stamp on white background
  • 491520707
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  • Laboratory tests. Test urine, feces, semen, and blood in plastic jars with colored lids
  • 696322900
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  • Woman working in a laboratory. He writes with a felt pen. Selective focus
  • 520292052
  • iStock
  • Blood test tubes. Blood samples  isolated on white. 3d illustration
  • 519960294
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  • A Liquid Nitrogen bank containing suspension of stem cells. Cell culture for the biomedical diagnostic
  • 629606180
  • iStock
  • blank sachet packaging for food and cosmetic isolated on white
  • 836062940
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  • Close up of doctor arms holding blood test tube and making notes. Woman is sitting at table in lab
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  • Set round line icons of medical analysis isolated on white. Vector illustration
  • 670838768
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  • Close-up of glass tube with blue fluid in scientist hand during medical test
  • 636194124
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  • Test Tubes And Pipette - Research In Laboratory
  • 663613046
  • iStock
  • Hand writing inscription Free Sample with marker, concept
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  • iStock
  • Scientist with equipment holding tools during scientific experiment science concept
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  • Tube blood sample in a medical examination. Medical research
  • 669125030
  • iStock
  • samples of saliva in plastic tubes collected at different time of day for laboratory hormone profile analysis
  • 159309710
  • iStock
  • Laboratory samples of urine and blood. Flat design
  • 641641620
  • iStock
  • Couple is sitting in front of female medico. She giving capacitance for taking tests to man. Woman looking at medical advisor with smile
  • 638754826
  • iStock
  • Laboratory tests and accessories set. Vector illustration, flat design
  • 638143058
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  • Stool sample jars with transport medium used in laboratory medicineStool sample jars with transport medium used in laboratory medicine
  • 532004281
  • iStock
  • Thawing cryosample taken out of cryostorage on dark green background, text space
  • 515631085
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  • Stool sample jars with transport medium used in laboratory medicine
  • 532004251
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  • Female pediatrician using a swab to take a sample from a patient's throat
  • 700815074
  • iStock
  • worker checking quality of material at an iron ore dump in an industrial area.
  • 517746831
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  • Female pediatrician using a swab to take a sample from a patient's throat
  • 700815120
  • iStock
  • Female pediatrician using a swab to take a sample from a patient's throat
  • 700817504
  • iStock
  • Laboratory assistant putting test tubes into the holder, Close-up view focused on the tubes
  • 946264212
  • iStock
  • Scientist using protective robber gloves for handling dangerous substances and experiments
  • 477013712
  • iStock
  • Hand of doctor smear stool exam for test find fluke’s eggs,Opisthorchis viverrini
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  • iStock
  • Set of different cosmetics cream. view from above
  • 673603850
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  • Sterile Medical container for urine isolated on white background with reflection.
  • 657403946
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  • Lab assistant preparing microscope slides, disinfecting them before research
  • 879828980
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  • Worker of medical laboratory preparing glass for tests based on blood samples
  • 879836898
  • iStock
  • A scientist distributes a liquid throughout a cell culture plate with a multichannel pipette
  • 520238059
  • iStock
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