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Close up of cell biologist holding a flask containing stem cells, cultivated in red growth medium, to investigate disease
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Scientist pipetting a sample into a phial during an experiment in a laboratory
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Close up of 96-well microtiter plate with crystal violet solution to examine toxicity
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DNA sample being pipetted into multi well plate with DNA gel below
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Female scientist looking through scanning electron microscope in lab
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A eppendorf containing a sample used in analytical chemistry and DNA extraction awaiting testing in a laboratory
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Female scientist pipetting sample into a vial for analytical testing in a laboratory
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Smiling student wearing safety glasses in front of test tubes in lab at college
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Pipette dropping a solution into a vial, used for storing liquid during chemical or biological research
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Cell biologist holding a flask containing stem cells, cultivated in red growth medium, to investigate diseases
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Analytical chemistry - sample being pipetted into test tube for analysis in laboratory
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Mixed Black Labrador Retriever in a garden in summer, Upper Palatinate, Bavaria, Germany
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Close up of female scientist examining micro organisms in petri dish
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Portrait of dog in outdoor swimming pool, Laguna Beach, California, USA
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Scientist viewing various human samples for testing in the laboratory
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Doctor preparing to view blood sample under microscope in laboratory for medical testing
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Close up of scientist viewing a molecular structure in a laboratory
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Scientist viewing molecular model of a chemical formula in a laboratory
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Scientist preparing a sample slide containing a human specimen to view under a microscope in laboratory for medical testing
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Scientist using multi-channel pipette to fill multiwell plate for analysis of antibodies by ELISA assay, Jenner Institute, Oxford University
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Engineering students wearing protective equipment while working with chemicals in a laboratory
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A blood sample being held with a row of human samples for analytical testing including blood, urine, chemistry, proteins, anticoagulants and HIV in lab
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Laboratory technician preparing urine sample for medical testing in laboratory
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