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Lab assistant, medical scientist, chemistry researcher holds a glass tube through a chemical test tube, does a chemical experiment and examines a patient's sample. Medicine and research concept.
Scientists are carrying blue chemical test tubes to prepare for the determination of chemical composition and biological mass in a scientific laboratory, Scientists and research in the lab Concept.
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Focus on a glass pipette with a dripping reagent in a test tube on tripod, over blurred background of a chemical laboratory assistant conducting clinical analysis in the biological chemical laboratory
